Question

a road 2 m 50 cm wide is built around a square garden of side 15 m . find the area of the road​

Answer 1

length of road=15m

breadth of road=250/100m or 25/10 m

area of road =l * b

=15*25/10

=37.5m^2
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Answer 2

Ans

Area of garden with road=l×b

=(15+2.50)×(152.50)

=17.50×17.50

=306.25

Area of path=area of garden with path-area of garden

=306.25-225=81.25m^2