The rectangle is 88 m long and 70 m long. What’s the length of a training track running around the field?

Question

A training field is designed by joining a rectangle and two semicircles. The rectangle is 88 m long and 70 m long. What’s the length of a training track running around the field?

Answer 1

The track has two sides of length 88 ft.

 

The length of the two semicircular portions of the track is the circumference of the circle with diameter 70 ft

 

       = 70π ft

 

Length of track = 2(88 ft) + 70π ft ≈ 395.9 ft

Answer 2

I'm  going to assume the 88m side is running lengthwise down the field.  

 

You have a rectangle and two equal half circles, which means you have a rectangle and a circle.

 

A rectangle = l x w = 88 x 70 = 6160 ft^2

 

Circle Area = pir^2 = 3.14(35)^2 = 3846.5

 

Sum the rectangle and the circle:

 

3846.5 + 6160 = 10006.5 ft^2