Question

A cuboid has total surface area of 40 m^2 and its lateral surface area is 26m^2.Find the area of its base

Answer 1

40=2(lb+ bh+hl)

40/2=20= lb+bh+hl

2×(l+b)×h =26

(l+b) × h =26/2=13

20=lb+bh+hl

20=lb+ h(l+b)

20=lb+13

lb=20-13=7 m^2

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Answer 2

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