Questions by krutika

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Four horses are tethered with equal ropes at 4 corners of a square field of side 70 metres so that they just can reach one another. Find the area left ungrazed by the

asked Jan 17, 2022 in 8th-maths

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Find the perimeter of the given figure.

asked Jan 17, 2022 in 8th-maths

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Find the length of the largest pole that can be placed in a room of dimensions `12 m xx 4 m xx 3 m`. Find the area of the following fields. All dimensions are in

asked Jan 17, 2022 in 8th-maths

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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

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The ratio of the radius and height of a cylinder is 2:3. If its volume is 12,936 `cm^3`, find the total surface area of the

asked Jan 17, 2022 in 8th-maths

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `16x^4 –

asked Jan 17, 2022 in 8th-maths

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Perform the following divisions: `(3pqr – 6p^2q^2r^2) -:

asked Jan 17, 2022 in 8th-maths

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

asked Jan 17, 2022 in 8th-maths

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Verify the following: `(p – q) (p^2 + pq + q^2) = p^3 –

asked Jan 17, 2022 in 8th-maths

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Find the value of a, if `9a = 76^2 –

asked Jan 17, 2022 in 8th-maths

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asked Jan 17, 2022 in 8th-maths

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In `2^n`, n is known

asked Jan 17, 2022 in 8th-maths

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The value of `(–2)^(2xx3–1)`

asked Jan 17, 2022 in 8th-maths

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The value of `(7^(–1) – 8^(–1))^(–1) – (3^(–1) – 4^(–1))^(–1)`

asked Jan 17, 2022 in 8th-maths

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The usual form for `2.3 xx 10^(-10)` is

asked Jan 17, 2022 in 8th-maths

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The value of `[1^(–2) + 2^(–2) + 3^(–2)] xx 6^2` is ________

asked Jan 17, 2022 in 8th-maths

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Solve the following:(i) `100^(–10)` (ii) `2^(–2) xx 2^(–3)` (iii) `(1/2)^(-2) -:

asked Jan 17, 2022 in 8th-maths

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Express `3^(–5) xx 3^(–4)` as a power of 3 with positive

asked Jan 17, 2022 in 8th-maths

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Simplify: -1. `(49 xx z^(-3))/(7^(-3) xx 10 xx z^(-5))`

asked Jan 17, 2022 in 8th-maths

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Divide 293 by 10,00,000 and express the result in standard

asked Jan 17, 2022 in 8th-maths

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