Question

find the area of circle whose radius is 87.5 km

Answer 1

this formula of area of circle

Answer 2

$area ofcircle = \pi \times r {}^{2}$
$22 \div 7 \times 87.5 \times 87.5$
$22 \div 7 \times 7656.25$
$168437.5 \div 7$
$24062.5$