In the gym, there is a scale that measures people's weight. The needle is 22 cm long, and it rotated 124° when Evelyn stepped on it. How far did the needle travel as it rotated?

1364π
2728π
682 pi over 45
45 pi over 682

I'm confused, but I am thinking the answer is D

Question

In the gym, there is a scale that measures people's weight. The needle is 22 cm long, and it rotated 124° when Evelyn stepped on it. How far did the needle travel as it rotated?

 1364π
 2728π
 682 pi over 45
 45 pi over 682

I'm confused, but I am thinking the answer is D

yagosik · Answer

Basically, you need to count a part of circle perimeter|dw:1463769451608:dw|