Question

Given that the circumferential of a circle is 22cm calculate its diameter​

Answer 1

diameter =7 cm

Explanation:

circum=2pi×r

`2\pi * r`

2×pi×r=22

2×22÷7×r=22

r=22×7÷44

r=7÷2

r=3.5

d=2×r=2×3.5=7