Recent questions tagged chapter11

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What is the area of the rhombus ABCD below if AC = 6 cm, and BE = 4cm?

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

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The area of a parallelogram is 60 `cm^2` and one of its altitude is 5 cm. The length of its corresponding side

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

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The perimeter of a trapezium is 52 cm and its each non-parallel side is equal to 10 cm with its height 8 cm. Its area

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

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Area of a quadrilateral ABCD is 20 `cm^2` and perpendiculars on BD from opposite vertices are 1 cm and 1.5 cm. The length of BD

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

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A metal sheet 27 cm long, 8 cm broad and 1 cm thick is melted into a cube. The side of the cube

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

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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 nishit (1.8k points)

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A covered wooden box has the inner measures as 115 cm, 75 cm and 35 cm and thickness of wood as 2.5 cm. The volume of the wood

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

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Two cubes have volumes in the ratio 1:64. The ratio of the area of a face of first cube to that of the other

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

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The surface areas of the six faces of a rectangular solid are 16, 16, 32, 32, 72 and 72 square centimetres. The volume of the solid, in cubic centimetres,

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

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Ramesh has three

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

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If R is the radius of the base of the hat, then the total outer surface area of the hat is

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

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A cube of side 4 cm is painted on all its sides. If it is sliced in 1 cubic cm cubes, then number of such cubes that will have exactly two of their faces painted is

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

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A cube of side 5 cm is cut into 1 cm cubes. The percentage increase in volume after such cutting is

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

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The surface area of a cuboid formed by joining two cubes of side a face to face is

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

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If the diagonals of a rhombus get doubled, then the area of the rhombus becomes __________ its original

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

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