Question

The field inside a running track is made of a rectangle that is 84.39 m long and 73 m wide to gether with a half circle at each end. What is the distance around the track?

Answer 1

398.21 m

Explanation:

The field inside a running track is made of a rectangle that is 84.39 m long and 73 m wide to gather with a half circle at each end.

So, the radius of each half circle will be
`(73)/(2) = 36.5` m.

Therefore, the total distance around the track i.e perimeter of the area covered by the track will be = 2 × Perimeter of each half circle + 2 × Length of the rectangle.

= Perimeter of full circle + 2 × Length of the rectangle.

=
`2\pi r + 2l`

=
`(2 * 22 * 36.5)/(7) +2 * 84.39`

= 398.21 m.(Answer)