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

Answer:

398.21 m

Step-by-step 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 $\frac{73}{2} = 36.5$ 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.

= $2\pi r + 2l$

= $\frac{2 \times 22 \times 36.5}{7} +2 \times 84.39$

= 398.21 m.(Answer)