Questions by krutika

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The area of a trapezium is 34 `cm^2` and the length of one of the parallel sides is 10 cm and its height is 4 cm. Find the length of the other parallel

asked Jan 17, 2022 in 8th-maths

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The diagonal of a quadrilateral shaped field is 24 m and the perpendiculars dropped on it from the remaining opposite vertices are 8 m and 13 m. Find the area of the

asked Jan 17, 2022 in 8th-maths

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Top surface of a raised platform is in the shape of a regular octagon as shown in the figure. Find the area of the octagonal

asked Jan 17, 2022 in 8th-maths

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Diagram of the adjacent picture frame has outer dimensions =`24 cm xx 28 cm` and inner dimensions 16 cm xx 20 cm. Find the area of each section of the frame, if the width of each section is same.

asked Jan 17, 2022 in 8th-maths

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A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet of metal. How much sheet of metal is

asked Jan 17, 2022 in 8th-maths

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Given a cylindrical tank, in which situation will you find surface area and in which situation volume. To find how much it can

asked Jan 17, 2022 in 8th-maths

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Simplify and write the answer in the exponential form. `(25 ÷ 28)^5 xx 2^(–

asked Jan 17, 2022 in 8th-maths

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asked Jan 17, 2022 in 8th-maths

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Simplify and express the result in power notation with positive exponent. `(3^(– 7) ÷ 3^(– 10)) xx 3^(– 5)`

asked Jan 17, 2022 in 8th-maths

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Find the value of. `(2^(– 1) xx 4^(– 1)) ÷ 2^(–

asked Jan 17, 2022 in 8th-maths

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Find the value of. `(3^(– 1) + 4^(– 1) + 5^(–

asked Jan 17, 2022 in 8th-maths

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asked Jan 17, 2022 in 8th-maths

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Express the following numbers in standard form. 0.0000000000085

asked Jan 17, 2022 in 8th-maths

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A photograph of a bacteria enlarged 50,000 times attains a length of 5 cm as shown in the diagram. What is the actual length of the bacteria? If the photograph is enlarged 20,000 times only, whatwould be its enlarged

asked Jan 17, 2022 in 8th-maths

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Suppose 2 kg of sugar contains `9 xx 10^6` crystals. How many sugar crystals are there in 5 kg of sugar?

asked Jan 17, 2022 in 8th-maths

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