case study questions class 9 maths surface area and volume -Maths 9th

case study questions class 9 maths surface area and volume -Maths 9th
by

1 Answer

Answer :

Q. Read the source or text given below and answer the following questions: A conical circus tent has to be made with a cloth that is 5m wide, whose height is 24m, and the radius of the base is 7m.                                                    1. How many 'meters of cloth is required for making the tent' comes under which concept 2. Find the length of the cloth used to make the tent  3. Find the cost of cloth at Rs.7per m². 4. Find the Curved Surface Area  Answers: 1. Curved Surface Area  2. 550 m  3. Rs.3850 4.110m²
by

Related questions

Cbqs (case base study ) of chapter 13 surface areas and volume of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 13 surface areas and volume of maths class 9th -Maths 9th

Last Answer : CBQs Ch- 13 Surface area and volume - Maths Class 9th 1 . Dev was doing an experiment to find the radius r of a sphere.For this he took a cylindrical container with radius R = 7 cm and height 10 cm. He filled the container ... .14)*6²*8 = 301.44 m³ area of the floor = πR² = 3.14 (6)² = 113.04 m²

MCQ Questions for Class 9 Maths Chapter 13 Surface Area and Volumes with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 13 Surface Area and Volumes with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 13 Surface Areas and Volumes Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive ... Areas and Volumes MCQ Questions will help you in practising more and more questions in less time.

Cbqs (case base study ) of chapter 9 Areas of Parallelograms and Triangles of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 9 Areas of Parallelograms and Triangles of maths class 9th -Maths 9th

Last Answer : CBQs Ch- 13 Surface area and volume - Maths Class 9th 1.Answers: 1. 2. 3

Cbqs (case base study ) of chapter 12 Heron's Formula of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 12 Heron's Formula of maths class 9th -Maths 9th

Last Answer : CBQs Ch- 13 Surface area and volume - Maths Class 9th 1.A triangular park ABC has sides 120m, 80m and 50m (see Fig. 12.7). A gardener Dhania has to put a fence all around it and also plant grass ... used for wheat, potatoes, and onions? (1 hectare = 10000 m2 ) More questions to be added shortly...

Cbqs (case base study ) of chapter 15 Probability of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 15 Probability of maths class 9th -Maths 9th

Last Answer : answer:

Cbqs (case base study ) of chapter 14 Statistics of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 14 Statistics of maths class 9th -Maths 9th

Last Answer : answer:

Cbqs (case base study ) of chapter 11 Constructions of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 11 Constructions of maths class 9th -Maths 9th

Last Answer : answer:

Cbqs (case base study ) of chapter 10 Circles of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 10 Circles of maths class 9th -Maths 9th

Last Answer : CBQs Ch- 13 Surface area and volume - Maths Class 9th 1.Answers: 1. 2. 3

Cbqs (case base study ) of chapter 8 Quadrilaterals of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 8 Quadrilaterals of maths class 9th -Maths 9th

Last Answer : answer:

Cbqs (case base study ) of chapter 7 Triangles of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 7 Triangles of maths class 9th -Maths 9th

Last Answer : CBQs Ch- 13 Surface area and volume - Maths Class 9th 1.Answers: 1. 2. 3

Cbqs (case base study ) of chapter 6 Lines and Angles of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 6 Lines and Angles of maths class 9th -Maths 9th

Last Answer : answer:

Cbqs (case base study ) of chapter 5 Introduction to Euclid's Geometry of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 5 Introduction to Euclid's Geometry of maths class 9th -Maths 9th

Last Answer : answer:

Cbqs (case base study ) of chapter 4 Linear Equations in Two Variables of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 4 Linear Equations in Two Variables of maths class 9th -Maths 9th

Last Answer : answer:

Cbqs (case base study ) of chapter 3 Coordinate Geometry of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 3 Coordinate Geometry of maths class 9th -Maths 9th

Last Answer : answer:

Cbqs (case base study ) of chapter 2 Polynomials of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 2 Polynomials of maths class 9th -Maths 9th

Last Answer : answer:

Cbqs (case base study ) of chapter 1 Number System of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 1 Number System of maths class 9th -Maths 9th

Last Answer : answer:

CBQ's (case base study ) , MCQs and Practice questions of chapter 5 Cell-Fundamental unit of life Science class 9 -Biology 9th

Description : CBQ's (case base study ) , MCQs and Practice questions of chapter 5 Cell-Fundamental unit of life Science class 9 -Biology 9th

Last Answer : MCQs Class 9th Biology Ch-5 The Fundamental Unit of Life Question 1 Which of the following can be made into crystal? (a) A Bacterium (b) An Amoeba (c) A Virus (d) A Sperm Answer 1 (c) Question 2 A cell will swell ... (v) Suicidal bag and nucleolus Answer 10 a-iv; b-v; c-iii; d-i; e-ii Q

How should i study maths main chapters like Lines and Angle,Triangles class 9 ?? -Maths 9th

Description : How should i study maths main chapters like Lines and Angle,Triangles class 9 ?? -Maths 9th

Last Answer : You should study them thoroughly so that you won't find them difficult when you are preparing for competitive exams like Olympiad s,etc. Study other reference books along with ncert textbook. Hope my and will help you.

How should i study maths main chapters like Lines and Angle,Triangles class 9 ?? -Maths 9th

Description : How should i study maths main chapters like Lines and Angle,Triangles class 9 ?? -Maths 9th

Last Answer : You should study them thoroughly so that you won't find them difficult when you are preparing for competitive exams like Olympiad s,etc. Study other reference books along with ncert textbook. Hope my and will help you.

MCQ Questions for Class 9 Maths Chapter 1 Number Systems with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 1 Number Systems with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 1 Number Systems Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. ... These Number Systems MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 2 Polynomials with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 2 Polynomials with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 2 Polynomials Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. These ... . These Polynomials MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 3 Coordinate Geometry with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 3 Coordinate Geometry with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 3 Coordinate Geometry Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams ... Coordinate Geometry MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 4 Linear Equations in Two Variables with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 4 Linear Equations in Two Variables with answers -Maths 9th

Last Answer : 1) The linear equation 3x-11y=10 has: a. Unique solution b. Two solutions c. Infinitely many solutions d.No solutions c Explanation: 3x-11y=10 y=(3x-10)/11 Now for infinite values of x, y will ... c=0, always lie in the: a. First quadrant b. Second quadrant c. Third quadrant d. Fourth quadrant a

MCQ Questions for Class 9 Maths Chapter 5 Introduction to Euclid`s Geometry with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 5 Introduction to Euclid`s Geometry with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 5 Introduction to Euclid`s Geometry Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking ... Euclid`s Geometry MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 6 Lines and Angles with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 6 Lines and Angles with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 6 Lines and Angles Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. ... Lines and Angles MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 7 Triangles with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 7 Triangles with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 7 Triangles Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. These Class ... . These Triangles MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 8 Quadrilaterals with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 8 Quadrilaterals with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 8 Quadrilaterals Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. ... These Quadrilaterals MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 9 Areas of Parallelogram and Triangles with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 9 Areas of Parallelogram and Triangles with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 9 Areas of Parallelograms and Triangles Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking ... and Triangles MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 10 Circles Number Systems with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 10 Circles Number Systems with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 10 Circles Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. These Class ... . These Circles MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 11 Constructions with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 11 Constructions with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 11 Constructions Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. ... These Constructions MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 15 Probability with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 15 Probability with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 15 Probability Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. These ... . These Probability MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 12 Heron's Formula with answers Heron`s Formula -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 12 Heron's Formula with answers Heron`s Formula -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 12 Heron's Formula Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. ... Heron's Formula MCQ Questions will help you in practising more and more questions in less time.

MCQ Questions for Class 9 Maths Chapter 14 Statistics with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 14 Statistics with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 14 Statistics Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. These ... . These Statistics MCQ Questions will help you in practising more and more questions in less time.

NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.1 -Maths 9th

Description : NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.1 -Maths 9th

Last Answer : 1. A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is opened at the top. Ignoring the thickness of the plastic sheet, determine: (i) The area of the sheet required for making the box ... of a cylinder = 2πrh + 2πr2 = 2πr(h + r) Note: Unless it is mentioned assume π = (22/7)

NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.2 -Maths 9th

Description : NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.2 -Maths 9th

Last Answer : 1. The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. Find the diameter of the base of the cylinder. 2. It is required to make a closed cylindrical tank of height 1 m ... open from the top. ∴ Surface area of a penholder (cylinder) = [Lateral surface area] + [Base area]

NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.3 -Maths 9th

Description : NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.3 -Maths 9th

Last Answer : 1. Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its curved surface area. 2.Find the total surface area of a cone, if its slant height is 21 m and diameter of its base is 24 ... m2, what will be the cost of painting all these cones? (Use π = 3.14 and take √1.04= 1.02)

NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.4 -Maths 9th

Description : NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.4 -Maths 9th

Last Answer : 1. Find the surface area of a sphere of radius: (i) 10.5 cm (ii) 5.6 cm (iii) 14 cm 2. Find the surface area of a sphere of diameter: (i) 14 cm (ii) 21 cm (iii) 3.5 m 3. Find the ... area of the sphere, (ii) curved surface area of the cylinder, (iii) ratio of the areas obtained in (i) and (ii).

NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.5 -Maths 9th

Description : NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.5 -Maths 9th

Last Answer : 1. A matchbox measures 4 cm x 2.5 cm. x 1.5 cm. What will be the volume of a packet containing 12 such boxes ? 2. A cuboidal water tank is 6 m long, 5 m wide and 4.5 m deep. How many litres of ... 40 m wide is flowing at the rate of 2 km per hour. How much water will fall into the sea in a minute ?

NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.6 -Maths 9th

Description : NCERT Solutions for class 9 Maths Chapter 13 Surface Areas and Volumes Exercise 13.6 -Maths 9th

Last Answer : 1. The circumference of the base of a cylindrical vessel is 132 cm and its height is 25 cm. How many litres of water can it hold ? (1000 cm3 = 1 l) . 2. The inner diameter of a cylindrical ... with soup to a height of 4 cm, how much soup the hospital has to prepare daily to serve 250 patients ?

the curved surface area of a cylinder is 154 cm. the total surface area of the cylinder is three times its curved surface area. find the volume of the cylinder. -Maths 9th

Description : the curved surface area of a cylinder is 154 cm. the total surface area of the cylinder is three times its curved surface area. find the volume of the cylinder. -Maths 9th

Last Answer : T.S.A = 3*154 = 462 cm² C.S.A = 154 cm² C.S.A = 2πrh T.S.A = 2πr(r+h) Now, In T.S.A = 2πrr + 2πrh 462 = 2πrr + 2πrh 462 = 2*22/7*r*r + 154 462 - 154 = 2*22/7*r*r 308*7/2*22 = r*r 49 = r*r R = 7 cm ... 7*h 154/44 = h 7/2 =h H = 3.5 cm or 7/2 cm Now volume = πrrh = 22/7 * 7* 7 *7/2 = 11*49 = 539 cm³

The whole surface area of a rectangular block is 1300 cm2. Find its volume, if their dimensions are in the ratio of 4 : 3 : 2. -Maths 9th

Description : The whole surface area of a rectangular block is 1300 cm2. Find its volume, if their dimensions are in the ratio of 4 : 3 : 2. -Maths 9th

Last Answer : Let the length, breadth and height of the rectangular box be 4x, 3x and 2x, respectively. ∵ Total surface area = 1300 cm2 2(4x × 3x + 3x × 2x + 4x × 2x) = 1300 52x2 =1300x2 = 25x = 5 ∴ Volume of rectangular box = 4x × 3x × 2x = 24(5)2 = 3000 cm3

If the ratio of curved surface area and total surface area of a cylinder is 1 : 3, then find the volume of cylinder when the height is 2 cm. -Maths 9th

Description : If the ratio of curved surface area and total surface area of a cylinder is 1 : 3, then find the volume of cylinder when the height is 2 cm. -Maths 9th

Last Answer : Let the radius and height of the cylinder be r and h, respectively . Given that, Curved surface area / Total surface area = 1/3 ⇒ 2πrh / 2πr(h + r) = 1/3 ⇒ 3h = h + r ⇒ r = 2h = 4cm ∴ volume of cylinder πr2h = π × (4)2 × 2 = 32π cm3

If the volume of a sphere is numerically equal to its surface area, then find the diameter of the sphere. -Maths 9th

Description : If the volume of a sphere is numerically equal to its surface area, then find the diameter of the sphere. -Maths 9th

Last Answer : Let r be the radius of the sphere. and Volume of a sphere = surface area of the sphere ⇒ 4 / 3πr3 = 4πr2 ⇒ r = 3 cm ∴ Diameter of the sphere = 2r = 2 × 3 = 6 cm

A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Description : A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Last Answer : since curved surface of half of the spherical ball = 56.57 cm2 ∴ 2πr2 = 56.57 ⇒ r2 = 56.57 / 2 × 3.14 = 9 ⇒ r = 3 cm Now, volume of spherical ball = 4 / 3 πr3 = 4 / 3 × 3.14 × 3 × 3 × 3 = 113.04 cm3

The whole surface area of a rectangular block is 1300 cm2. Find its volume, if their dimensions are in the ratio of 4 : 3 : 2. -Maths 9th

Description : The whole surface area of a rectangular block is 1300 cm2. Find its volume, if their dimensions are in the ratio of 4 : 3 : 2. -Maths 9th

Last Answer : Let the length, breadth and height of the rectangular box be 4x, 3x and 2x, respectively. ∵ Total surface area = 1300 cm2 2(4x × 3x + 3x × 2x + 4x × 2x) = 1300 52x2 =1300x2 = 25x = 5 ∴ Volume of rectangular box = 4x × 3x × 2x = 24(5)2 = 3000 cm3

If the ratio of curved surface area and total surface area of a cylinder is 1 : 3, then find the volume of cylinder when the height is 2 cm. -Maths 9th

Description : If the ratio of curved surface area and total surface area of a cylinder is 1 : 3, then find the volume of cylinder when the height is 2 cm. -Maths 9th

Last Answer : Let the radius and height of the cylinder be r and h, respectively . Given that, Curved surface area / Total surface area = 1/3 ⇒ 2πrh / 2πr(h + r) = 1/3 ⇒ 3h = h + r ⇒ r = 2h = 4cm ∴ volume of cylinder πr2h = π × (4)2 × 2 = 32π cm3

If the volume of a sphere is numerically equal to its surface area, then find the diameter of the sphere. -Maths 9th

Description : If the volume of a sphere is numerically equal to its surface area, then find the diameter of the sphere. -Maths 9th

Last Answer : Let r be the radius of the sphere. and Volume of a sphere = surface area of the sphere ⇒ 4 / 3πr3 = 4πr2 ⇒ r = 3 cm ∴ Diameter of the sphere = 2r = 2 × 3 = 6 cm

A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Description : A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Last Answer : since curved surface of half of the spherical ball = 56.57 cm2 ∴ 2πr2 = 56.57 ⇒ r2 = 56.57 / 2 × 3.14 = 9 ⇒ r = 3 cm Now, volume of spherical ball = 4 / 3 πr3 = 4 / 3 × 3.14 × 3 × 3 × 3 = 113.04 cm3

The total surface area of a cube is 96 cm2 . The volume of the cube is -Maths 9th

Description : The total surface area of a cube is 96 cm2 . The volume of the cube is -Maths 9th

Last Answer : NEED ANSWER

The lateral surface area of a cube is 256 m2. The volume of the cube is -Maths 9th

Description : The lateral surface area of a cube is 256 m2. The volume of the cube is -Maths 9th

Last Answer : NEED ANSWER