Question

Find the area of a circle whose diameter is 28 cm

Answer 1

Heya!!!

Answer to your question:

Diameter=28cm
Radius=28/2=14cm

$area \: of \: circle = \pi {r}^{2}$
=22/7 *14*14
=616 cm^2

Hope it helps ^_^

Answer 2

D=28 cm
R=D/2=14cm
Area =pi R^2=3.14×14×14 =615.44cm^2