Question

Circumference of a circle with a diameter of 12 cm

Answer 1

circumference= 2πr (formula)

r= d/2

d=12

r=6

π= 22/7

c= 2 X 22/7 X 6

c=37.7

Answer 2

C ≈ 37.7 cm

Explanation:

the circumference (C) of a circle is calculated as

C = πd ( d is the diameter )

given d = 12 cm , then

C = π × 12 ≈ 37.7 cm ( to the nearest tenth )