Question

Area of a circular field is 3850 $c{m}^2$. What is the perimeter of that field? ( Take $\pi =\frac{22}{7}$)

• A. 385 cm²
• B. 192.5 cm²
• C. 150 cm²
• D. 220 cm²

Answer 1

The correct option is D

220 cm²

Area of a circle = $\pi r^2$ = 3850
r = 35 cm
Perimeter of the circle = 2$\pi r$ = 2($\frac{22}{7}$) x 35 = 220 cm