Question

Find the area of the circle with the given radius or diameter. Use pi = 3.14.

r = 4

A =
50.24 sq. units
100.48 sq. units
25.12 sq. units

Answer 1

50.24 sq units

Explanation:

Answer 2

`\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\ \cline{1-1} r=4 \end{cases}\implies A=\pi 4^2\implies A=16\pi \implies \stackrel{\pi =3.14}{A=50.24}`