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URGENT QUESTION

A running track has two semi-circular ends with radius 25m and two straights of length 87.6m
Calculate the total area of the track rounded to 1 DP.

User Clee
by
6.9k points

1 Answer

6 votes

Answer:

6343.5 m^2

Explanation:

If you cut off the semicircular ends of this track and fit them together, you get a perfect circular area of radius 25 m.

The area of the circle is A = (pi)(25 m)^2, or A = 625pi m^2.

The rectangular middle portion of the track area is 2(25 m), or 50 m wide and 87.6 m long. Thus the area of this portion is (50 m)(87.6 m), or 4380 m^2.

Adding together the areas of the rectangle and circle, we get the total area:

A = 4380 m^2 + 625pi m^2, which evaluates to 6343.5 m^2

User Avin Zarlez
by
6.5k points
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