Answer:
Step-by-step explanation:
Formula
Arc length = (theta/360) * 2 * pI * r
Givens
Arc Length = 27 inches
theta = 30
r = ?
Solution
27 = (30/360) * 2 * 3.14 * r Reduce the right hand side
30 / 360 = 1/12 = 0.0833
Arc length = 0.0833 * 2 * 3.14 * r
Arc length = .5233 * r
27 = 0.5233 * r Divide both sides by 0.5233
27/0.5233 = 9.5233 r / 0.5233
51.59 = r
Comment
None of the answers agree with what I am getting. I'm pretty certain I've done it correctly with the numbers given. You might want to ask your instructor how this is done.
