Question

a race track of school in the shape as given figure with a rectangle and semicircular ends. Find length of track . The region inside the track needs to be grassed .Find the cost grazing the regions at the rate of rupees 20 per square meter .

Answer 1

Length of track is 22 metres.

Area of the figure is 38.5squaremetre

Cost of grazing 1 square metre is rupees 20.

So; the cost of grazing 38.5 metre square will be rupees 770.