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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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Curved surface area of a cylinder of radius h and height r is

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

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A bicycle wheel makes 500 revolutions in moving 1 km. Find the diameter of the

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

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

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If the length of each edge of a cube is tripled, what will be the change in its

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

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `y^4 –

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

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 – 6x +

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

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Factorise the expressions and divide them as directed: `(2x^3 – 12x^2 + 16x) -: (x – 2) (x –

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

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If m – n = 16 and `m^2 + n^2 = 400`, then find

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

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Subtract `b (b^2 + b – 7) + 5` from `3b^2 – 8` and find the value of expression obtained for `b = –

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

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Factorise `p^4 + q^4 +

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

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If x be any integer different from zero and m, n be any integers, then `(x^m)^n` is equal

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

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`((-7)/5)^(-1)` is equal

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

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The standard form for 0.000064

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

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The standard form for 234000000

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

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The usual form for `2.03 xx

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

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`(3/4)^5 -: (5/3)^5` is equal

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

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