Question

if the perimeter 7.2cm .calculated its radius

Answer 1

for circle.... the perimeter = 7.2 cm
2 pai r = 7.2
r = 72/10 * 1/2 * 7/22
r = 1.14 cm

Answer 2

Perimeter of circle = 7.2 cm

Formula = 2πr

2πr = 7.2
πr = 7.2/2
r = 3.6  x 7/22 = 1.14 cm