Question

a rectangular park is 100m by 50m. it is surrounded by semi circular flower beds all round.find the cost of levelling the semi circle flower bed at 60 paise per square metre please experts answer this question pleaseeeeeeeeeee

Answer 1

given,
a rectangular park is surrounded by 4 semicircular flower beds.
so the diameter of two semicircles =100m
diameter of another two semicircles=50m
the area of semicircles= area of two big semicircles+ area of two small semicircles
=2πr²+2πR²
=2(22/7 ×50×50)+2(22/7 ×25×25)
=2×22/7(50×50+25×25)
=44/7(2500+625)
=44/7(3125)
=44×3125/7=19642.8 approx
cost=19642.8×60/100
=11785 rupees.

MAYBE IT IS CORRECT ANSWER.

Answer 2

hope this answer is helpful