A rectangular classroom 90 m long and 75 m wide has a 15 m wide strip marked along its inner boundary. find the area of the strip
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Answered by
10
In this question we find the total surface area of cuboid.
surface area of cuboid =2(lb+bh+hl)
Given, length = 90m
breadth = 75m
and, height = 15m
surface area of cuboid =2(lb+bh+hl)
Given, length = 90m
breadth = 75m
and, height = 15m
Answered by
9
area of strip =2×90×15+2×75×15
=2700+2250
=4950m*2
=2700+2250
=4950m*2
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