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Three cubes of metal whose edges are 6 cm, 8 cm and 10 cm respectively are melted to form a single cube. The edge of the new cube

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

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If a cube fits exactly in a cylinder with height h, then the volume of the cube is __________ and surface area of the cube is

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

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The volume of a cylinder becomes __________ the original volume if its radius becomes half of the original

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

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The surface area of a cylinder which exactly fits in a cube of side b is

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

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The perimeter of a rectangle becomes __________ times its original perimeter, if its length and breadth are

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

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The surface area of a cuboid formed by joining face to face 3 cubes of side x is 3 times the surface area of a cube of side

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

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The area of a rectangular field is 48 `m^2` and one of its sides is 6m. How long will a lady take to cross the field diagonally at the rate of 20

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

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Four horses are tethered with equal ropes at 4 corners of a square field of side 70 metres so that they just can reach one another. Find the area left ungrazed by the

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

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Most of the sailboats have two sails, the jib and the mainsail. Assume that the sails are triangles. Find the total area of each sail of the sail boats to the nearest tenth.

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

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Mukesh walks around a circular track of radius 14 m with a speed of 4 km/hr. If he takes 20 rounds of the track, for how long does he

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

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Find the perimeter of the given figure.

asked Jan 17, 2022 in 8th-maths by yogita (1.8k 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 sumit (1.6k points)

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Find the length of the largest pole that can be placed in a room of dimensions `12 m xx 4 m xx 3 m`. Find the area of the following fields. All dimensions are in

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

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

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Radius of a cylinder is r and the height is h. Find the change in the volume if the (a) height is doubled. (b) height is doubled and the radius is halved. (c) height remains same and the radius is

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

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How many cubes each of side 0.5 cm are required to build a cube of volume 8 `cm^3`

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

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The ratio between the curved surface area and the total surface area of a right circular cylinder is 1:2. Find the ratio between the height and radius of the

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

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The given graphs show the progress of two different cyclists during a ride. For each graph, describe the rider’s progress over the period of

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

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A graph that displays data that changes continuously over periodsof time

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

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The table given below shows the temperatures recorded on a day at different times. Observe the table and answer the following questions. (a) What is the temperature at 8 am?(b) At what time is the temperature

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

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