Question

Prove that
$\frac{763\times 1}{3\times 3.14\times 4}=r^2$

Answer 1

We have,

$\frac{763\times 1}{3\times 3.14\times 4}=r^2$

$\Rightarrow r^2=\frac{763}{12\times 3.14}$

$\Rightarrow r^2=\frac{763}{37.68}$

$\Rightarrow r^2=20.24$

$\Rightarrow r=\sqrt{20.24}$

$\Rightarrow r=4.50$

Hence, this is the answer.