Question

PLEASE HELP I WILL MEDAL AND FAN

Solve for r: C = 2pir.

r = C over 2 pi
r = 2 c all over pi
r = C over pi
r = pi times C all over 2

Answer 1

Hint:
if we divide both sides by 2*pi, we get:
\[\Large \frac{C}{{2\pi }} = \frac{{2\pi r}}{{2\pi }}\]
please simplify the right side

Answer 2

2 pi r=c?

Answer 3

whenever there is a question like solve for r ... we need r to be by itself... so what do we need to do to make that happen?

Answer 4

divide by 2

Answer 5

yes... we can do that... but there's more..

Answer 6

2 pi

Answer 7

yes! so divide 2pi on both sides

Answer 8

hint: