Question

A square water tank has its each side equal to 40 m. There are four semi circular grassy plots all around it. Find the cost of turfing the plot at Rs 1.25 per sq. m. (Use  = 3.14

Answer 1

R of each semicircle=20m

Area of all 4 semicircles=2pi.r^2=2512 sq m

Area of sq=asq=1600 sq m

Total area =4112msq

Cost=4112*1.25=8840.8