Question

A garden is 90 meter long and 80 meter wide. A path of 5 meter wide is to be built outside and around it. Find the area of path?

Answer 1

Inner Length = 90 m
Inner width = 80 m

Inner Area = 80*90
= 7200 m^2

Outer length = 100 m
Outer width = 90 m
Outer Area = 100 * 90
= 9000 m^2

Area of path = Outer Area - Inner Area
= 9000 - 7200
= 1800 m^2


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Answer 2

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After building a path, a new rectangle is formed of lenght =90+5+5=100m, breadth =80+5+5=90

Area of new rectangle =90*100=9000m²

Area of old rectangle =80*90=7200m²

Area if path =9000-7200=1800m²