Question

find the radius of the circle whose circumference is 132 CM​

Answer 1

$c = 132 \\ 2\pi \: r = 132 \\ 2 \times \frac{22}{7} \times r = 132 \\ r = \frac{132 \times 7}{2 \times 22} \\ r = 21cm$

Answer 2

Answer:

Circumference of circle= 2× pi×r

132=2×22/7×r

r=231cm