Question

If the area of circle is 49pai sq units.then its perimeter is

Answer 1

Hola!

πr² = 49π

r² = 49π/π

r² = 49

r = 7cm

Perimeter is given by

2πr

= 2×$\frac{22}{7}$×7

= 44cm

Answer 2

Area is 49 pi r sq.

Radius= 49/2=7

Circumference=2×22/7×7=44