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The volume of cone is 1597.2 cm3. If its height is 1.4 cm then find the radius of the cone.
A certain sum is deposited for 4 years at a rate of 10% per annum on compound interest compounded annually. The difference between the interest at the e...
The perimeter of a rhombus is 50 m. If one of its diagonals is 7 m, then the area of the rhombus is
Radius of a cylindrical vessel is 3cm less than breadth of rectangle, while height of cylindrical vessel is equal to length of rectangle, whose area is ...
In a rectangular floor of length and breadth of 20 metres and 9 metres, respectively, square tiles each of 3 metre edge length are to be laid. If the co...
A rectangular piece of copper foil of length 63 cm and area 1386 cm2 is folded along its width to form a cylinder such that there is only one...
A large metallic sphere of radius 21 cm is melted and used to make small cuboidal bars of dimensions 7 cm × 6 cm × 3 cm. Find the number of bars that ...
The surface area of the two spheres are in the ratio 4:9. Their volumes will be in the ratio.
The side of a square is equal to the perimeter of an equilateral triangle of area 36√3 cm2 . Find the area of the square?
Find the length of a wire radius 0.40 cm which can completely cover the surface of a cylinder whose height is 1.6m and base radius 21 cm?