Find the amount of water displayed by a solid spherical ball of diameter
(i) 28 cm
(ii) `0.21 m`

Find the surface Area of a sphere of diameter (i) 14 cm (ii) 21 cm (iii) 3.5 cm

A solid metal cone with radius 12 cm and height 24 cm is melted to form solid spherical balls each of diameter 6 cm. the number of such balls made are

A cylindrical vessel with internal solid diameter 10 cm and height 10.5 cm if full of water. A solid cone of base diameter 7 cm and height 6 cm is completely immersed in water. Find the volume of A] Water displaced out of cylinderical vessel B] water left in the cylinderical vessel.

Find the surface area of a sphere of diameter : 21 cm

150 spherical marbles, each of diameter 14 cm, are dripped in a cylindrical vessel of diameter 7 cm containing some water. The marbles are completely immersed in water. Find the rise in the level of water.

Find the volume of a sphere whose radius is (i) 7 cm, (ii) 0.63 m

Find the area of a sector of a circle whose diameter is 28cm and central angle is 120^@

Find the maximum valume of a cone that can be carved out of a solid hemisphere of radius 21 cm .

A solid sphere of radius 3 cm is melted and recast into smaller spherical balls of radius 0.3 cm. find the number of balls thus obtained.

The inner diameter of a cylindrical wooden pipe is 24 cm and its outer diameter is 28 cm. The pipe is 35 cm long . Find the mass of the pipe if 1cm^(3) of wood has a mass of 0.6 gm .