Find the surface area of a sphere of radius 14 cm.

Given,

Radius of sphere (r) = 14 cm

By formula,

Surface area of the sphere (A) = 4πr²

Substituting values we get :

$A = 4 \times \dfrac{22}{7} \times (14)^2 \\[1em] = 4 \times \dfrac{22}{7} \times 14 \times 14 \\[1em] = 4 \times \dfrac{22}{7} \times 196 \\[1em] = 4 \times 22 \times 28 \\[1em] = 2464 \text{ cm}^2.$

Hence, surface area of sphere = 2464 cm².