Mathematics
Related Questions
Find the surface area and volume of a sphere of diameter 21 cm.
A shot-put is a metallic sphere of radius 4.9 cm. If the density of the metal is 7.8 g per cm3, find the mass of the shot-put.
Find
(i) the curved surface area.
(ii) the total surface area of a hemisphere of radius 21 cm.
A hemispherical brass bowl has inner-diameter 10.5 cm. Find the cost of tin-plating it on the inside at the rate of ₹ 16 per 100 cm2.