Question

HELP
If you know the diameter of a circle, how do you find its circumference?

Answer 1

\[circumference = \pi*diameter\]

Answer 2

D'AWW THANKS BUD!(:

Answer 3

\[circumference=2\pi(r)\]
\[r=\frac{d}{2}\]
\[circumference=2\pi(\frac{d}{2})\]
\[circumference=\pi(d)\]