Question

A training field is formed by joining a rectangle and two semicircles, as shown below. The rectangle is 84 m long and 55 m wide. What is the length of a training track running around the field? (Use the value 3.14 for pi, and do not round your answer. Be sure to include the correct unit in your answer.)

Answer 1

340.7 m

Explanation:

there are two length of the rectangle in the perimeter

84 x 2 = 168 m

perimeter of the two semicircles

55 x 3.14 = 172.7 m

total perimeter

168 + 172.7 = 340.7 m