Question

The base area of the jug with a radius of $5$ in is $25\pi$ in${}^2$. Estimate the area to the nearest tenth. (Use $\pi =\frac{22}{7}$ )

Answer 1

Radius of the base of the jug $=5$ in
Given that, base area of the jug = $25\pi$ in${}^2$
Value of $\pi =\frac{22}{7}$
$\Rightarrow$ Base area of the jug $=\frac{22}{7}\times 25$
$=\frac{22\times 55}{7}$
$=\frac{550}{7}=\mathrm{78.571428..}\simeq 78.6$ (estimated to the nearest tenth)
So, the area of the base of the jug is $78.6$ sq in.
So, option A is the correct answer.