An athlete runs in a track that is in the shape of a semicircle and returns to the starting point without repeating his path. If the radius of the semicircle is 21m, what is the length of the path he ran?
Add an Answer
More Questions From This User See All
Answers & Comments
Answer:
32.97 cm
Step-by-step explanation:
1/2πr
so,
1/2*3.14*21
32.97 cm