Question

3. A running track has the shape of a rectangle capped with a semicircle on each end, as shown below. If

Answer 1

Answer:

431.3 ft

Step-by-step explanation:

Circumference=π(80ft)=251.3

90+90+251.3=431.3ft

p.s. I think we have the same teacher for Math 107 lol

Answer 2

Answer:

Step-by-step explanation:

We want to determine the perimeter of the track. Perimeter is the distance around the entire track.

The diameter of each semicircle is 80 feet.

Radius = diameter/2 = 80/2 = 40 feet

Since the semicircles are 2, the perimeter of the outside of both semi circles would be

Perimeter = 2 × π × r

Perimeter = 2 × 3.14 × 40 = 251.2 feet.

Therefore, the distance around the outside of the track would be

251.2 + 90 + 90 = 431.2 feet