8. Fig. depicts a racing track whose left and right ends are semicircular.
The distance between the two inner parallel line segments is 60 m and they are each 106 m long. If the track is 10 m wide, find :
(ii) the area of the track.
The area of track = Area of outer structure - Area of inner structure.
Area of outer structure is: = Area of square + Area of 2 semicircles
And, area of inner structure: = Area of inner square + Area of 2 inner semicircles
Thus the area of the track is :
Hence the area of the track is 4320 m2.