The total surface area of a cuboid is 200 sq.m and lateral surface area is 140 sq.m find the area of its base
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Dear friend,
Answer:30cm^2
Step-by-step explanation:
TSA of cuboid=2(lb+lh+bh)=200m^2
CSA of cuboid=2(l+b)h=140m^2
From TSA, lb+lh+bh=100
lh+bh=100-lb. ------(1)
From CSA, lh+bh=70. ------(2)
From equations 1 and 2,
lb=30cm^2
Therefore, the area of the base of the cuboid is 30cm^2
Hope it hepls!☺
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