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

Given, r = 14 cm.

Surface area of sphere = 4πr².

Putting values in equation we get,

Surface area of sphere =

$4 \times \dfrac{22}{7} \times (14)^2 = \dfrac{4 \times 22 \times 196}{7} = \dfrac{17248}{7} = 2464$ cm².

Volume of sphere = $\dfrac{4}{3}πr^3$

Putting values in equation we get,

Volume of sphere =

$\dfrac{4}{3} \times \dfrac{22}{7} \times (14)^3 = \dfrac{4 \times 22 \times 2744}{21} = \dfrac{241472}{21} = 11498\dfrac{2}{3}$ cm³.

Hence, the surface area of sphere = 2464 cm² and volume of sphere = $11498\dfrac{2}{3}$ cm³.