Questions by sumit

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Find the area of polygon ABCDEF, if AD = 18cm, AQ = 14 cm, AP = 12 cm, AN = 8 cm, AM = 4 cm, and FM, EP, QC and BN are perpendiculars to diagonal

asked Jan 17, 2022 in 8th-maths

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A circle of maximum possible size is cut from a square sheet of board. Subsequently, a square of maximum possible size is cut from the resultant circle. What will be the area of the final

asked Jan 17, 2022 in 8th-maths

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The perimeter of a trapezium is 52 cm and its each non-parallel side is equal to 10 cm with its height 8 cm. Its area

asked Jan 17, 2022 in 8th-maths

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The volume of a cylinder which exactly fits in a cube of side a is

asked Jan 17, 2022 in 8th-maths

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Two cylinders of same volume have their radii in the ratio 1:6, then ratio of their heights is

asked Jan 17, 2022 in 8th-maths

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Mukesh walks around a circular track of radius 14 m with a speed of 4 km/hr. If he takes 20 rounds of the track, for how long does he

asked Jan 17, 2022 in 8th-maths

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asked Jan 17, 2022 in 8th-maths

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asked Jan 17, 2022 in 8th-maths

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The radius and height of a cylinder are in the ratio 3:2 and its volume is 19,404 `cm^3`. Find its radius and

asked Jan 17, 2022 in 8th-maths

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A swimming pool is 200 m by 50 m and has an average depth of 2 m. By the end of a summer day, the water level drops by 2 cm. How many cubic metres of water is lost on 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)`. `y^4 –

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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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 – 3x +

asked Jan 17, 2022 in 8th-maths

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `17ab^2c^3 -:

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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Factorise the expressions and divide them as directed: `(3x^4 – 1875) -: (3x^2 –

asked Jan 17, 2022 in 8th-maths

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The area of a square is given by `4x^2 + 12xy + 9y^2`. Find the side of the

asked Jan 17, 2022 in 8th-maths

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The radius of a circle is 7ab – 7bc – 14ac. Find the circumference of the circle.

asked Jan 17, 2022 in 8th-maths

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What should be added to `4c (– a + b + c)` to obtain `3a (a + b + c) – 2b(a – b +

asked Jan 17, 2022 in 8th-maths

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If `x-1/x=7` then find the value of

asked Jan 17, 2022 in 8th-maths

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