Question

The circumference of a circle is 14 cm. Find the radius of this circle

Answer 1

r ≈ 2.23 cm

Explanation:

the circumference (C) of a circle is calculated as

C = 2πr ( r is the radius )

given C = 14 , then

2πr = 14 ( divide both sides by 2 )

πr = 7 ( divide both sides by π )

r =
`(7)/(\pi )` ≈ 2.23 cm ( to 2 dec. places )

Answer 2

2.23 should be the radius