Question

The circumference of a circle is 17.6 cm . Find its area of the circle

Answer 1

c=2πr
17.6=2×22/7×r
so, r=17.6×7/(44)
r=0.4×7
r=2.8
area =πr^2
=22/7×2.8×2.8
=22×0.4×2.8
=24.64 sq. cm.