Question

find the cost of fencing a square Park of side 250 m at the rate of RS20 per meter

Answer 1

Area of square =2×side
=2×250
=500m^2

20×500= 10000Rs

Answer 2

given:
side=250cm
perimeter of a square=4a units
=4×250cm
=1000cm
cost of fencing 1m=₹20
cost of fencing 1000m=1000×₹20
=₹20000