Recent questions tagged chapter11

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How many bricks of size `22 cm xx 10 cm xx 7 cm` are required to construct a wall 11m long, 3.5 m high and 40 cm thick, if the cement and sand used in the construction occupy `(1/10)^(th)` part of the

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

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A rectangular examination hall having seats for 500 candidates has to be built so as to allow 4 cubic metres of air and 0.5 square metres of floor area per candidate. If the length of hall be 25 m, find the height and breadth of the

asked Jan 17, 2022 in 8th-maths by Arun (1.7k 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 nishit (1.8k points)

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A birthday cake has two tiers as shown in the figure below. Find the volume of the cake.

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

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

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

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

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

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Water flows from a tank with a rectangular base measuring 80 cm by 70 cm into another tank with a square base of side 60 cm. If the water in the first tank is 45 cm deep, how deep will it be in the second

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

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A rectangular sheet of paper is rolled in two different ways to form two different cylinders. Find the volume of cylinders in each case if the sheet measures 44 cm × 33

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

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A square and a rectangular field with measurements as given in the figure have the same perimeter. Which field has a larger

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

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Mrs. Kaushik has a square plot with the measurement as shown in the figure. She wants to construct a house in the middle of the plot. A garden is developedaround the house. Find the total cost of developing a garden around the house at the rate of Rs 55 per

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

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The shape of a garden is rectangular in the middle and semi circular at the ends as shown in the diagram. Find the area and the perimeter of this garden [Length of rectangle is 20 – (3.5 + 3.5) metres].

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

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A flooring tile has the shape of a parallelogram whose base is 24 cm and the corresponding height is 10 cm. How many such tiles are required to cover a floor of area 1080 `m^2`? (If required you can split the tiles in whatever way you want to fill up the

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

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An ant is moving around a few food pieces of different shapes scattered on the floor. For which food-piece would the ant have to take a longer round? Remember,circumference of a circle can be obtained by using the expression c = 2πr, where r is the radius of the

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

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Find the area of quadrilateral PQRS shown in Fig 11.11.

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

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Find the area of a rhombus whose diagonals are of lengths 10 cm and 8.2

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

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The area of a trapezium shaped field is 480 `m^2` , the distance between two parallel sides is 15 m and one of the parallel side is 20 m. Find the other parallel

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

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The area of a rhombus is 240 `cm^2` and one of the diagonals is 16 cm. Find the other

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

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There is a regular hexagon MNOPQR of side 5 cm .Aman and Ridhima divided it in two different

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

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