Question

Find the surface area of a sphere of radius:

(i) 10.5 cm

(ii) 5.6 cm

(iii) 14 cm

Answer 1

Here we need to find the surface area of spheres of different radii

We solve it using the formula,

Curved surface area of the sphere

(i) Radius = 10.5cm

Therefore, the surface area of the sphere of radius 10.5cm is

(ii) Radius = 5.6cm

Therefore, the surface area of the sphere of radius 5.6cm is

(iii) Radius = 14cm

Therefore, the surface area of the sphere of radius 14cm is