Question

i waana the answer. find the diameter of a circle whose circumference is 66m.

Answer 1

21 m
us the diameter of circle

Answer 2

let the radius be 'r'
circumference=2πr

66=2×22/7×r
66×1/2×7/22=r
10.5=r

therefore the radius is 10.5m

diameter=2r
=10.5×2=21

the diameter is 21m.