Question

A running track has two semi-circular ends with radius 31m and two straights of length 92.7m as shown.
Calculate the total area of the track rounded to 1 DP.

Answer 1

Answer:

5,891.24 m²

Step-by-step explanation:

Area of rectangle is 92.7 x 31= 2,873.7 sq. m

area of 1 semi circle is πr²/2

but there r 2 semi circles and hence area of 2 semicircles is πr² = 3.14 x (31²)= 3,017.54 sq. m

toral area = 2,873.7 + 3,017.54 = 5,891.24 m²