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Area of a rhombus = `1/2` product 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 Arun (1.7k points)

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__________ of a solid is the measurement of the space occupied by

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

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The surface area of a cube formed by cutting a cuboid of dimensions `2 xx 1 xx 1 in 2` equal parts is 2 sq.

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

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The area of a trapezium with equal non-parallel sides is 168 `m^2`. If the lengths of the parallel sides are 36 m and 20 m, find the length of the non-parallel

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

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A cube of side 5 cm is cut into as many 1 cm cubes as possible. What is the ratio of the surface area of the original cube to that of the sum of the surface areas of the smaller

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

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A river 2 m deep and 45 m wide is flowing at the rate of 3 km per hour. Find the amount of water in cubic metres that runs into the sea per

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

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Find the area to be painted in the following block with a cylindrical hole. Given that length is 15 cm, width 12 cm, height 20 cm and radius of the hole 2.8 cm.

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

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `9x^2 – (3y +

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

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The area of a circle is given by the expression `πx^2 + 6πx + 9π`. Find the radius of the

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

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The height of a triangle is `x^4 + y^4` and its base is 14xy. Find the area of the

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

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If x – y = 13 and xy = 28, then find `x^2 +

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

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Find the value of a, if `pq^2a = (4pq + 3q)^2 – (4pq –

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

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Factorise `p^4 + q^4 +

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

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Find the length of the side of the given square if area of the square is 625 square units and then find the value of x.

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

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The figure shows the dimensions of a wall having a window and a door of a room. Write an algebraic expression for the area of the wall to be painted.

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

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If x be any non-zero integer and m, n be negative integers, then `xm xx xn` is equal

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

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`(-5/7)^(-5)` is equal

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

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The standard form for 0.000064

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

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Cube of `-1/2`

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

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