Question

A race track is made from two straights and two semicircles. The straights are 80m long. The race track has a total perimeter of 400m.
Calculate the distance,d, between the two straights.

Answer 1

Answer:

76.4 m

Step-by-step explanation:

The race track has two straights and two semi circles.

Each straight is 80m

total perimeter for the straights is 80 * 2 = 160m

two semi circles which creates a full circle

perimeter of a full circle = $\pi$ d

NB : (d) is the diameter

therefore we can find the value of the diameter

400 = 160 + $\pi$ d

400- 160 = $\pi$d

240 = $\pi$d

d = 240/$\pi$

d = 76.394.....

d = 76.4 m