Question

Find the length of an arc of an 8" radius circle if the arc measures 45°.

Answer 1

\[C=2\pi r\] therefore \[A=\frac{\alpha}{360}\times 2 \pi r\] sub known values and solve.

Answer 2

thanks so much, your lay it out alot better then the instructions!

Answer 3

Basically you just need to find the circumference and then take whatever fraction of the whole is needed. In this case it's 45/360.