Question

a squares water tank has its each side equal to 40m. 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 pie ==3.14)

Answer 1

area of square side
$area of square = (s)2 = 40 \times 40 = 1600 cost of turfing the plot = 1.25 \times 1600 = 2000.00 \\ hence \: the \: cost \: of \: turfing \: the \: plot \: = 2000.00$
I hope this is your answer