Question

A circle has a diameter of 8 cm. What is the circumference? Round to
the nearest hundredth.

Answer 1

Explanation:

area of a cicle is π
`r^(2)`

the diameter is twice as long as the radius so the radius would have a length of 4 cm.

π
`4^(2)`=50.27

Hope that helps :)

Answer 2

C≈25.13cm

Explanation:

C=πd=π·8≈25.13274cm

d=2r

C=2πr

(hope this helps)