Question

Area of circle = 154 square metre . find its perimeter and radius​

Answer 1

$area = \pi r {?}^{2}$

r²=area/pie

$r = \sqrt{area \div \pi}$

$r = \sqrt{154 \div \pi}$

$r = \sqrt{154 \div 22 \div 7}$

r=7.00141 cm²

r=7cm²

$perimeter = 2\pi \: r$

Perimeter=2×22/7×7

=44cm