Question

What is the area of OF in square units?

16,278
8,139
4,069
2,035
72
F

Answer 1

the assumption is that the circle F has a diameter of 72, and therefore a radius of half that or namely 36.

`\textit{area of a circle}\\\\ A=\pi r^2 ~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=36 \end{cases}\implies A=\pi 36^2 \\\\\\ A=1296\pi \implies \stackrel{ using~\pi =3.14 }{A=4069.44}\implies A\approx 4069`