I want to understand the concept of quadrilaterals -Maths 9th

1 Answer

Answer :

The basic concept of quadrilateral is that the sum of its all interior angles is 360°. The notes will be provided soon on our website. For NCERT Solutions refer here.

Related questions

Description : I want to understand the concept of quadrilaterals -Maths 9th

Last Answer : The basic concept of quadrilateral is that the sum of its all interior angles is 360°. The notes will be provided soon on our website. For NCERT Solutions refer here.

Description : Quadrilaterals Class 9th Formula -Maths 9th

Last Answer : A point is that which has no part. A line is breadth less length. The ends of lines are points. A straight line is a line which lies evenly with the points on itself. A surface is that ... lines, if produced indefinitely, meet on that side on which the sum of angles are less than two right angles

Description : NCERT Solutions for class 9 Maths Chapter 8 Quadrilaterals Exercise 8.1 -Maths 9th

Last Answer : 1. The angles of quadrilateral are in the ratio 3 : 5 : 9 : 13. Find all the angles of the quadrilateral. Let the angles of the quadrilateral be 3x, 5x, 9x and 13x. ∵ Sum of all the angles of ... ABCD is a square, and diagonals of a square bisect the opposite angles. ∴ BD bisects ∠B as well as ∠D.

Description : NCERT Solutions for class 9 Maths Chapter 8 Quadrilaterals Exercise 8.2 -Maths 9th

Last Answer : 1. ABCD is a quadrilateral in which P, Q, R and S are midpoints of the sides AB, BC, CD and DA (see figure). AC is a diagonal. Show that: (i) SR || AC and SR = (1/2) AC (ii) PQ = SR (iii) PQRS is a parallelogram. We ... MA =(1/2)AB (2) From (1) and (2), we have CM = MA = (1/2) AB

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.

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

Last Answer : answer:

Description : A child says that the median of 3, 14, 18, 20 and 5 is 18. What does not the child understand about finding the median? -Maths 9th

Last Answer : NEED ANSWER

Description : A child says that the median of 3, 14, 18, 20 and 5 is 18. What does not the child understand about finding the median? -Maths 9th

Last Answer : The child does not understand, that data has to be arranged in ascending or descending order before finding the median.

Description : what- A stained glass window contains many shapes. Quadrilaterals CDEF and GHIJ are shown.Which statement is true?

Last Answer : the quadrilaterals are not similar

Last Answer : The rhombuses intersect at right angles to each other.

Description : How many sides do 5 quadrilaterals have in all?

Last Answer : 15

Description : Are the corresponding angles of similar quadrilaterals congruent?

Last Answer : Feel Free to Answer

Description : How many sides do 1 decagon 4 quadrilaterals and 3 pentagons have?

Last Answer : They add up to (1*10)+(4*4)+(3*5) = 41 sides altogether

Description : What quadrilaterals have the same attributes of a rectangle?

Last Answer : If the attributes of a rectangle are considered to be:it has two pairs of parallel sidesopposite sides are equal in lengthall angles are 90°the diagonals are equal and bisectThen only a square also has ... , but the lengths of those two pairs are different, then only a rectangle is a rectangle.

Description : Is all trapezoids are quadrilaterals?

Last Answer : Nope... a trapezoid has four sides - regardless of its shape.However, unless all four sides are the same length, they are notalways quadrilaterals.

Description : Is true or false no triangles are quadrilaterals?

Last Answer : True. A quad has 4 sides and 4 corners. Triangles (please note the tri-) have 3.

Description : A quadrilateral has one pair of equal length sides and diagonals which are not perpendicular. Name the quadrilateral or quadrilaterals.?

Last Answer : trapezium

Description : I want contact number of study ranker who give answers of our question on whatsapp I am having that number earlier but plzzz it's my request please provide me your number I am PREMIUM MEMBER -Maths 9th

Last Answer : NEED ANSWER

Description : I want contact number of study ranker who give answers of our question on whatsapp I am having that number earlier but plzzz it's my request please provide me your number I am PREMIUM MEMBER -Maths 9th

Last Answer : Hi there, You can ask your doubts here. Just post your question by clicking on Ask Question button select the subject and enter the chapter name in tag. Thanks.

Description : There are 6 numbered chairs placed around a circular table. 3 boys and 3 girls want to sit on them such that neither of two boys nor two girls -Maths 9th

Last Answer : Since the chairs are numbered, so they are distinguishable. Therefore 3 boys can be arranged on 3 alternate chairs in 3! ways. 3 girls can be arrenged in 3! ways Also, the girls can be seated before the boys. Total number of required ways = 3! × 3! + 3! × 3! = 2 × (3!)2

Description : How did the word "understand" come to relate the concept of knowing?

Last Answer : Have you actually read the etymology?

Description : Can you help me understand the concept of "Professional Tuition and Fees"?

Last Answer : It costs more because it costs them more (labs and whatnot). You should call the University to make sure you’re not misinterpreting anything.

Description : Will humans one day have the power to understand any concept?

Last Answer : No, we will always be human.

Description : Are there any cultures that don't understand (or, at least, have time for) the concept of the "white lie"?

Last Answer : Bavarians? they’ll smack it right in your face

Description : can you help me please?

Last Answer : A blister is a type of packaging - most often used for small (eg electronic) components - typically a set of X-pieces of AA or AAA batteries, memory cards, USB flash drives, small battery cells and ... , tough plastic foil, which is 'welded' around the perimeter, so it forms a compact whole. :-)

Description : Understand The Concept Of Cloud Computing?

Last Answer : The concept of cloud computing is easy to understand, especially when people realize their web-based e-mail accounts are cloud computing applications. In fact, many cloud-based software applications run ... about cloud computing is that it allows workers to login from anywhere to do their jobs.

Description : Which of the following is an example of a problem that may arise in the implementation of the marketing concept? A)By satisfying one segment in society, a firm contributes to the dissatisfaction of other ... do not support the marketing concept. D)A product may fit the needs of too many segments.

Last Answer : A)By satisfying one segment in society, a firm contributes to the dissatisfaction of other segments.

Description : Which can be described as an ideal teaching technique? Options: A) Repetitive drill and rote memorization B) Using props and manipulative to help students understand abstract concept. C) Encouraging in group discussion for logical thinking. D) both (b) and (c)

Last Answer : D) both (b) and (c)  

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

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

Last 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. ... 4. Find the Curved Surface Area Answers: 1. Curved Surface Area 2. 550 m 3. Rs.3850 4.110m²

Description : Sohan wants to show gratitude towards his teacher by giving her a card made by him. He has three pieces of trapezium pasted one above the other as shown in fig. These pieces are arranged in a way that AB||HC || GD || FE. Also BC=CD=DE, and GF=6 cm... -Maths 9th

Last Answer : Given : Sohan wants to show gratitude towards his teacher by giving her a card made by him. He has three pieces of trapezium pasted one above the other as shown in the fig. These pieces are arranged ... length of coloured tape required = 30 cm (b) The values are : Happiness, beauty, Knowledge.

Description : While discussing the properties of a parallelogram teacher asked about the relation between two angles x and y of a parallelogram as shown ... -Maths 9th

Last Answer : (a) Yes , x < y is correct (b) Ð ADB =Ð DBC = y (alternate int. angles) since BC < CD (angle opp. to smaller side is smaller) there for, x < y (c) Truth value

Description : Hameed has built a cubical water tank with lid for his house, with each other edge 1.5m long. -Maths 9th

Last Answer : Edge of cubical tank = 1.5 m ∴ Area of 4 walls = 4 (side)² = 4(1.5)² m² = 4 x 225 = 9 m² Area of floor = (1.5)² = 2.25 m² ∴ Total surface area = 9 + 2.25 = 11.25 m² Edge of square tile = 25 m = 0.25 m² ∴ Area of 1 tile = (0.25)2 = .0625 m²

Description : A 4 cm cube is cut into 1 cm cubes. Calculate the total surface area of all the small cubes. -Maths 9th

Last Answer : Side of cube = 4 cm But cutting into 1 cm cubes, we get = 4 x 4 x 4 = 64 Now surface area of one cube = 6 x (1)² = 6 x 1=6 cm² and surface area of 64 cubes = 6 x 64 cm² = 384 cm²

Description : Three equal cubes are placed adjacently in a row. Find the ratio of total surface area of the new cuboid to that of the sum of the surface areas of the three cubes. -Maths 9th

Last Answer : Let each side of a cube = a cm Then surface area = 6a² cm² and surface area of 3 such cubes = 3 x 6a² = 18a² cm² By placing three cubes side by side we get a cuboid whose ... + 3a²] = 14 a² ∴ Ratio between their surface areas = 14a² : 18a² = 7 : 9

Description : The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of ₹7.50 m². -Maths 9th

Last Answer : Length of a room (l) = 5m Breadth (b) = 4 m and height (h) = 3 m ∴ Area of 4 walls = 2(l + b) x h = 2(5 + 4) x 3 = 6 x 9 = 54 m² and area of ceiling = l x b = 5 x ... ∴ Total area = 54 + 20 = 74 m2 Rate of white washing = 7.50 per m² ∴ Total cost = ₹74 x 7.50 = ₹555

Description : Mary wants to decorate her Christmas tree. She wants to place the tree on a wooden block covered with coloured paper with picture of Santa Claus on it. -Maths 9th

Last Answer : Length of box (l) = 80 cm Breadth (b) = 40 cm and height (h) = 20 cm ∴ Total surface area = 2(lb + bh + hl) = 2[80 x 40 + 40 x 20 + 20 x 80] cm² = 2[3200 + 800 + 1600] ... of one sheet = (40 cm)² = 1600 cm² ∴ No. of sheets required for the box = 11200 = 1600 = 7 sheets

Description : Find the ratio of the total surface area and lateral surface area of a cube. -Maths 9th

Last Answer : Let a be the edge of the cube, then Total surface area = 6a2² and lateral surface area = 4a² Now ratio between total surface area and lateral surface area = 6a² : 4a² = 3 : 2

Description : Find the lateral surface area and total surface area of a cube of edge 10 cm. -Maths 9th

Last Answer : Edge of cube (a) = 10 cm (i) ∴ Lateral surface area = 4a² = 4 x (10)² = 4 x 100 cm²= 400 cm² (ii) Total surface area = 6a² = 6 x(10)² cm² = 6 x 100 = 600 cm²

Description : Find the lateral surface area and total surface area of a cuboid of length 80 cm, breadth 40 cm and height 20 cm. -Maths 9th

Last Answer : Length of cuboid (l) = 80 cm Breadth (b) = 40 cm Height (h) = 20 cm (i) ∴ Lateral surface area = 2h(l + b) = 2 x 20(80 + 40) cm² = 40 x 120 = 4800 cm² (ii) Total surface area = 2(lb ... x 40 + 40 x 20 + 20 x 80) cm² = 2(3200 + 800 + 1600) cm² = 5600 x 2 = 11200 cm²

Description : A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface of the pillar at the rate of ₹12.50 per m2 . -Maths 9th

Last Answer : Diameter of the pillar = 50 cm ∴ Radius (r) = 502m = 25 m = 14m and height (h) = 3.5m Curved surface area of a pillar = 2πrh ∴ Curved surface area to be painted = 112m2 ∴ Cost of painting of 1 m2 pillar = Rs. 12.50 ∴ Cost of painting of 112 m2 pillar = Rs. ( 112 x 12.50 ) = Rs. 68.75.

Description : The diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in m2. -Maths 9th

Last Answer : The roller is in the form of a cylinder of diameter = 84 cm ⇒ Radius of the roller(r) = 842 cm = 42 cm Length of the roller (h) = 120 cm Curved surface area of the ... roller = 31680 cm2 = 3168010000m2 ∴ Area of the playground levelled in 500 revolutions = 500 x 3168010000m2 = 1584m2

Description : A field is in the shape of a trapezium whose parallel sides are 25 m and 10 m. The non-parallel sides are 14 m and 13 m. Find the area of the field. -Maths 9th

Last Answer : Let the given field is in the form of a trapezium ABCD such that parallel sides are AB = 10 m and DC = 25 m Non-parallel sides are AD = 13 m and BC = 14 m. We draw BE || AD, such that BE = 13 m. ... = 112 m2 So, area of the field = area of ∆BCE + area of parallelogram ABED = 84 m2 + 112 m2 = 196 m2

Description : A floral design on a floor is made up of 16 tiles which are triangular, the sides of the triangle being 9 cm, 28 cm and 35 cm (see figure). -Maths 9th

Last Answer : NCERT Solutions for Class 9 Maths Chapter 12 Heron's Formula NCERT Solutions for Class 9 Maths Chapter 12 Heron's Formula Ex 12.1 are part of NCERT Solutions for Class 9 Maths. Here we have given NCERT Solutions for Class 9 Maths ... = 48 m Sides ∆ABC are a = AB = 30m, b = AD = 30m, c = BD = 48m S

Description : A kite in the shape of a square with a diagonal 32 cm and an isosceles triangle of base 8 cm and sides 6 cm each is to be made of three different shades as shown in figure. -Maths 9th

Last Answer : Each shade of paper is divided into 3 triangles i.e., I, II, III 8 cm For triangle I: ABCD is a square [Given] ∵ Diagonals of a square are equal and bisect each other. ∴ AC = BD = 32 cm Height of AABD ... are: Area of shade I = 256 cm2 Area of shade II = 256 cm2 and area of shade III = 17.92 cm2

Description : An umbrella is made by stitching 10 triangular pieces of cloth of two different colours (see figure), each piece measuring 20 cm, 50 cm and 50 cm. -Maths 9th

Last Answer : Let the sides of each triangular piece be a = 20 cm, b = 50 cm, c = 50 cm

Description : A rhombus shaped field has green grass for 18 cows to graze. If each side of the rhombus is 30 m and its longer diagonal is 48 m, how much area of grass field will each cow be getting? -Maths 9th

Last Answer : Here, each side of the rhombus = 30 m. Let ABCD be the given rhombus and the diagonal, BD = 48 m Sides ∆ABC are a = AB = 30m, b = AD = 30m, c = BD = 48m Since, a diagonal divides the rhombus into ... Area of grass for 18 cows to graze = 864 m2 ⇒ Area of grass for 1 cow to graze = 86418 m2 = 48 m2

Description : A triangle and a parallelogram have the same base and the same area. If the sides of the triangle are 26 cm, 28 cm and 30 cm, -Maths 9th

Last Answer : For the given triangle, we have a = 28 cm, b = 30 cm, c = 26 cm Area of the given parallelogram = Area of the given triangle ∴ Area of the parallelogram = 336 cm2 ⇒ base x height = 336 ⇒ ... be the height of the parallelogram. ⇒ h = 33628 = 12 Thus, the required height of the parallelogram = 12 cm

Description : Radha made a picture of an aeroplane with coloured paper as shown in figure. Find the total area of the paper used. -Maths 9th

Last Answer : For surface I: It is an isosceles triangle whose sides are a = 5 cm, b = 5 cm, c = 1 cm = (0.75 x 3.3) cm2 = 2.475 cm2 (approx.) For surface II: It is a rectangle with length 6.5 cm and breadth 1 cm. ∴ Area of ... surface V) = [2.475 + 6.5 + 1.3 + 4.5 + 4.5] cm2 = 19.275 cm2 = 19.3 cm2 (approx.)

Description : Find the area of a quadrilateral ABCD in which AB = 3 cm, BC = 4 cm, CD = 4 cm, DA = 5 cm and AC = 5 cm. -Maths 9th

Last Answer : Given a quadrilateral ABCD with AB = 3 cm, BC = 4 cm, CD = 4 cm, DA = 5 cm and AC = 5 cm. For ∆ABC, a = AB = 3 cm, b = BC = 4 cm and c = AC = 5 cm Now, area of quadrilateral ABCD = area of ∆ABC + area of ∆ACD = 6 cm2 + 9.2 cm2 = 15.2 cm2 (approx.)