A solid is shown in the figure below. The vertices ABCDEFGH form a 4 cm × 2 cm × 2 cm cuboid. The segments AI and DI are both of length 5 cm, and points ICGFB are coplanar. What is the height (in cm) of point I from the base rectangle EFGH?
Description : A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height. 2. Two faces measuring 4 cm x 1 cm are coloured in black. 3. Two faces measuring 6 cm x 1 cm are coloured in red. 4. Two faces ... and black colours on at least one side of the cube will be formed? (a)16 (b)12 (c)10 (d)4
Last Answer : Answer key : (d)
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 cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height. 17. Two faces measuring 4 cm x 1 cm are coloured in black. 18. Two faces measuring 6 cm x 1 cm are coloured in red. 19. Two faces ... colour on two sides and rest of the four sides having no colour ? (a)12 (b)10 (c)8 (d)4
Last Answer : Answer key : (c)
Description : A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height. 12. Two faces measuring 4 cm x 1 cm are coloured in black. 13. Two faces measuring 6 cm x 1 cm are coloured in red. 14. Two ... How many cubes will have 4 coloured sides and two non-coloured sides ? (a)8 (b)4 (c)16 (d)10
Last Answer : Answer key : (b)
Description : A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height. 7. Two faces measuring 4 cm x 1 cm are coloured in black. 8. Two faces measuring 6 cm x 1 cm are coloured in red. 9. Two faces measuring ... 1 cm(from 4 cm side). How many small cubes will be formed? (a)6 (b)12 (c)16 (d)24
Description : In the figure, arcs and drawn by taking vertices A, B and C of an equilateral triangle of side 10 cm to intersect the sides BC, CA and AB at their respective mid-points D, E and F. Find the area of teh shaded region. [use π = 3.14] -Maths 10th
Last Answer : Step-by-step explanation: We have been provided that, Triangle ABC is an Equilateral triangle. Side of triangle is = 10 cm The arcs are drawn from each vertices of the triangle. We get three sectors ... portion is, Remaining area = Area of triangle ABC - Area of all the sectors 39.25cm square
Description : What is the output of the following program ? (Assume that the appropriate pre-processor directives are included and there is no syntax error) main() { char S[ ] = "ABCDEFGH"; printf ("%C",* (& ... Base address of S is 1000 */ } (A) ABCDEFGH1000 (B) CDEFGH1000 (C) DDEFGHH1000 (D) DEFGH1000
Last Answer : (D) DEFGH1000
Description : The points A (9, 0), B (9, 6), C (–9, 6) and D (–9, 0) are the vertices of a: A(-3,-5) and(a)Square (b) Rhombus (c) Rectangle (d) Trapezium
Last Answer : (c) Rectangle
Description : What is the base of a rectangle has an area of 24 cm and a height of 6 cm.?
Last Answer : Base of rectangle: 24/6 = 4 cm
Description : The figure obtained by joining the mid-points of the adjacent sides of a rectangle of sides 8 cm and 6 cm, is -Maths 9th
Last Answer : Here, length of rectangle ABCD = 8 cm and breadth of rectangle ABCD = 6.cm Let E, F, G and H are the mid-points of the sides of rectangle ABCD, then EFGH is a rhombus.
Description : Five point charges each of charge + q are placed on five vertices of a regular of side h as shown in the figure. Then
Last Answer : Five point charges each of charge + q are placed on five vertices of a regular of side h as shown in the ... (4piepsilon_(0))q^(2)/h^(2)` along OC.
Description : Write the coordinates of the vertices of a rectangle whose length and breadth are 5 and 3 units respectively, -Maths 9th
Last Answer : Given, length of a rectangle = 5 units and breadth of a rectangle = 3 units One vertex is at origin i.e., (0, 0) and one of the other vertices lies in III quadrant. So, the length of the rectangle is 5 ... negative,direction of y-axis and then vertex is C(0, -3). The fourth vertex B is (-5, - 3).
Description : Write the coordinates of the vertices of a rectangle whose length and breadth are 6 and 3 units respectively, one vertex at the origin, the longer side lies on the y-axis and one of the vertices lies in the second quadrant. -Maths 9th
Last Answer : Solution :-
Description : ABCD is a square. Another square EFGH with the same area is placed on the square ABCD such that the point of intersection of diagonals of square -Maths 9th
Last Answer : (a) 32 (2 - √2)As is seen in the given figure, the sides of one square are parallel to the diagonals of another square. Also, square ABCD and EFGH have same area.⇒ Sides of square ABCD and square EFGH are 4 cm each. Let ... four Δs outside ABCD= 16 +16 (3 -2√2)= 16 + (4 - 2√2) = 32 (2 - √2) cm2.
Description : A point O in the interior of a rectangle ABCD is joined with each of the vertices A, B, C and D. Then, show that OA^2 + OC^2 = OB^2 + OD^2. -Maths 9th
Last Answer : answer:
Description : For same weight, same material, same length a. Solid shaft is always stronger than a hollow shaft b. Solid shaft is always weaker than a hollow shaft and strength ratio will depend upon Do/Di of ... of a solid shaft is always weaker and the strength ratio will depend upon Do/Di of hollow shaft
Last Answer : b. Solid shaft is always weaker than a hollow shaft and strength ratio will depend upon Do/Di of hollow shaft
Description : A circle has radius √2 cm. It is divided into two segments by a chord of length 2cm.Prove that the angle subtended by the chord at a point in major segment is 45 degree . -Maths 9th
Last Answer : Given radius =2 cm Therefore AO=2 cm Let OD be the perpendicular from O on AB And AB =2cm Therefore AD=1cm (perpendicular from the centre bisects the chord) Now in triangle AOD, AO=2 cm ... by a chord at the centre is double of the angle made by the chord at any poin on the circumference)
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 : A graph is a collection of nodes, called ………. And line segments called arcs or ……….. that connect pair of nodes. A) vertices, edges B) edges, vertices C) vertices, paths D) graph node, edges
Last Answer : A) vertices, edges
Description : For the circuit shown in figure given below, the equivalent resistance points A and B is
Last Answer : For the circuit shown in figure given below, the equivalent resistance points A and B is A. `10Omega` B. `5 Omega` C. `(10)/(3)Omega` D. `2Omega`
Description : Two cubes of edge 6 cm are joined to form a cuboid. Find the total surface area of the cuboid. -Maths 9th
Last Answer : When two cubes are joined end to end, then Length of the cuboid = 6 + 6 = 12 cm Breadth of the cuboid = 6 cm Height of the cuboid = 6 cm Total surface area of the cuboid = 2 (lb + bh + hi) = 2(12 x6 + 6×6 + 6×12) = 2(72 + 36 + 72) = 2(180) = 360 cm2
Description : Prove that the points (2, –2), (–2, 1) and (5, 2) are the vertices of a right angled triangle. Also find the length of the hypotenuse -Maths 9th
Last Answer : Let the co-ordinates of any point on the x-axis be (x, 0). Then distance between (x, 0) and (– 4, 8) is 10 units.⇒ \(\sqrt{(x+4)^2+(0-8)^2}\) = 10 ⇒ x2 + 8x + 16 + 64 = 100 ⇒ x2 + 8x – 20 = 0 ⇒ (x + 10) (x – 2) = 0 ⇒ x = –10 or 2 ∴ The required points are (– 10, 0) and (2, 0).
Description : Write the coordinates of the vertices of a rectangle whose lenght and breadth are 7 and 4 units respectively,one vertex atthe the origin,the longer side lies on the x-axis and one of the vertices lies in the third quadrant. -Maths 9th
Description : If diagonals of a cyclic quadrilateral are diameters of the circle through the vertices of the quadrilateral,prove that it is a rectangle. -Maths 9th
Last Answer : Solution :- Let, ABCD be a cyclic quadrilateral such that its diagonal AC and BD are the diameters of the circle though the vertices A,B,C and D. As angle in a semi-circle is 900 ∴ ∠ABC = 900 and ∠ADC = 900 ∠DAB = 900 ... Hence, ABCD is a rectangle.
Description : Which of the following contains output segments of AI programming? a) Printed language and synthesized b) Manipulation of physical object c) Locomotion d) All of the mentioned
Last Answer : d) All of the mentioned
Description : Input segments of AI programming contain(s)? a) sound b) smell c) touch d) none of the mentioned
Last Answer : d) none of the mentioned
Description : “KBS” in AI stands for? a) Knowledge Based Scenario b) Knowledge Based System c) Knowledge Based Segments d) Knowing Best System
Last Answer : b) Knowledge Based System
Description : Two cubes of side 2 cm each are joined end to end. Find the volume of the cuboid so formed. -Maths 9th
Last Answer : When two cubes of side 2 cm each are joined end to end then, Length (l) = (2 + 2) = 4cm Breadth (b) = 2 cm; Height (h) = 2 cm ∴ Volume of cuboid = lbh = 4 x 2 x 2 = 16 cm3
Description : The surface area of cuboid is 1792 sq cm. -Maths 9th
Last Answer : Let the height = x cm, then breadth = 2x cm length = 4x cm According to formula, 2(lb + bh + lh) = 1792 2(8x2 + 2x2 + 4x2) = 1792 28x2 = 1792 ⇒ x 2 = 1792/28 = 64 ⇒ x = 8 Length = 8 X 4 = 32 cm
Description : If flying height of a spacecraft is H, the length of air base is B and the parallax difference between two points is dp, then the difference in height (A) h = dp/(B/H) (B) h = (B/H) dp (C) h = dp/(H/B) (D) h = (H/B) dp
Last Answer : Answer: Option A
Description : Figure abc is rectangle. segment AB is 6cm long , segment BC is 8 cm long , and segment AC is 10 cm long. what is the area of triangle abc?
Last Answer : 28
Description : The necessary condition for forces to be in equilibrium is that these should be (A) Coplanar (B) Meet at one point (C) Both (A) and (B) above (D) All be equal
Last Answer : (C) Both (A) and (B) above
Description : The area of the entire figure below is 111 square unit. How can we describe the area of the striped rectangle Choose 1 answer:?
Last Answer : ...
Description : The reduced levels of points, 30 metres apart along the longitudinal section of a road portion between chainages 5 and 9 are shown in the given figure. If there is a uniform up-gradient of the road 120 in 1, the chainage ... 15) chains (B) (6 + 12) chains (C) (6 + 18) chains (D) None of these
Last Answer : (B) (6 + 12) chains
Description : Two concentric circles have radii of 23 cm and 9 cm. A rectangle has an area equal to the annular space between the above two circles. If the breadth of the rectangle is 22 cm then find its length. 1 : 32 cm 2 : 48 cm 3 : 76 cm 4 : 64 cm 5 : None of these
Last Answer : 4 : 64 cm
Description : The length of a rectangle is decreasing at a rate of 3 cm/sec and breadth is increasing at a rate of 4 cm/sec. Find the rate of change of its (a) peri
Last Answer : The length of a rectangle is decreasing at a rate of 3 cm/sec and breadth is increasing at a ... breadth of rectangle are 7 cm and 8 cm respectively.
Description : How many square tiles of side 9 cm are required to cover a rectangle of length 36 cm and breadth 18 cm exactly without any tiles overlapping?
Last Answer : 8 of them.
Description : What is the work The length of a rectangle is 4 cm more than 3 times the width. The perimeter is 88 cm. What are the dimensions of the rectangle Write a system of equations based on the info?
Last Answer : Let its length be 3x+4 and its width be x Perimeter: 2*(3x+4+x) = 88 Solving the equation x = 10 Therefore: length = 34 cm and width = 10 cm Check: 2*(34+10) = 88 cm
Description : The forces which meet at one point but their lines of action do not lie in one plane, are called a.Coplanar noncurrent forces b.Non-coplanar nonconcurrent forces c.Intersecting forces d.Coplanar concurrent forces e.
Last Answer : c. Non-coplanar nonconcurrent forces
Description : The forces, which meet at one point, but their lines of action do not lie in a plane, are called (A) Coplanar non-concurrent forces (B) Non-coplanar concurrent forces (C) Non-coplanar non-concurrent forces (D) Intersecting forces
Last Answer : (B) Non-coplanar concurrent forces
Description : According to principle of moments (A) If a system of coplanar forces is in equilibrium, then their algebraic sum is zero (B) If a system of coplanar forces is in equilibrium, then the ... of their resultant about the same point (D) Positive and negative couples can be balanced
Last Answer : (C) The algebraic sum of the moments of any two forces about any point is equal to moment of their resultant about the same point
Description : Forces are called coplanar when all of them acting on body lie in (A) One point (B) One plane (C) Different planes (D) Perpendicular planes
Last Answer : (B) One plane
Description : Let ABC be a triangle. Let D, E, F be points respectively on segments BC, CA, AB such that AD, BE and CF concur at point K. -Maths 9th
Description : The point A(0, 0), B(1, 7) and C(5, 1) are the vertices of a triangle. Find the length of the perpendicular from -Maths 9th
Last Answer : (b) 3x - y = 0 Given lines are 3x - y - 3 = 0 and 3x - y + 5 = 0. Line parallel to the given lines can be written as 3x - y + c = 0 ...(i) Let us taken a point, say ... 5c + 15 = - 3c + 15 ⇒ 8c = 0 ⇒ c = 0. Substituting c = 0 in (i), the required equation is 3x - y = 0.