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A cube of side 4 cm is cut into 1 cm cubes. What is the ratio of the surface areas of the original cubes and cut-out

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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If the height of a cylinder becomes `1/4` of the original height and the radius is doubled, then which of the following will be

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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The surface area of the three coterminus faces of a cuboid are 6, 15 and 10 `cm^2` respectively. The volume of the cuboid

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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If the radius of a cylinder is tripled but its curved surface area is unchanged, then its height will

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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The figure ABCD is a quadrilateral in which AB = CD and BC = AD. Its area is

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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The ratio of radii of two cylinders is 1: 2 and heights are in the ratio 2:3. The ratio of their volumes

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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The curved surface area of a cylinder is reduced by ____________ per cent if the height is half of the original

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

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The volume of a cylinder which exactly fits in a cube of side a is

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

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A trapezium with 3 equal sides and one side double the equal side can be divided into __________ equilateral triangles of _______

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

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All six faces of a cuboid are __________ in shape and of ______

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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Two cylinders A and B are formed by folding a rectangular sheet of dimensions `20 cm xx 10 cm` along its length and also along its breadth respectively. Then volume of A is ________ of volume of

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

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__________ surface area of room = area of 4

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Two cylinders of equal volume have heights in the ratio 1:9. The ratio of their radii is

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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The areas of any two faces of a cuboid are

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

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Ratio of area of a circle to the area of a square whose side equals radius of circle is 1 :

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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The areas of two circles are in the ratio 49:64. Find the ratio of their

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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A boy is cycling such that the wheels of the cycle are making 140 revolutions per hour. If the diameter of the wheel is 60 cm, calculate the speed in km/h with which the boy is

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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Find the area of the shaded portion in the following

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

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A square sheet of paper is converted into a cylinder by rolling it along its side. What is the ratio of the base radius to the side of the

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

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How many cubic metres of earth must be dug to construct a well 7 m deep and of diameter 2.8

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

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