Question

find the cost of fencing a square park of side 175m at the rate of rs20 per meter

Answer 1

perimeter of park = 4(side) = 4×175 = 700 m
now
cost of fencing 1 m = 20 rs
cost of fencing 700 m = 700×20 = 14000 rs

Answer 2

side = 175m
area of square=4×side
=4×175
=700m square
fencing cost =700×20
=14000 rupees
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