Question

Find the surface area of a circular park having diameter $50m$.

• A. 200$m^2$
• B. 1962.5$c{m}^2$
• C. 1962.5$m^2$
• D. 2000$c{m}^2$

Answer 1

The correct option is C

1962.5$m^2$

Radius $=\frac{1}{2}$ $\times$ diameter $=\frac{1}{2}$$\times 50$ = $25m$
Surface area of circle = $\pi r^2$ where $\pi =3.14$
= $3.14\times$ ${25}^2$ = $1962.5m^2$