Question

A cuboid has has total surface area of 69m and lateral surface area of 40m. find the area of its base​

Answer 1

Answer:

Step-by-step explanation:

(69-40)=29 m^2

Answer 2

Answer:

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T.S.A. OF CUBOID = 2(lb+bh+lh)

T.S.A. OF CUBOID = 2lb+2bh+2lh

since, L.S.A OF CUBOID = 2lh+2bh = 40m

therefore, T.S.A. OF CUBOID = 2lb+40

therefore, 69 = 2lb+40

therefore, 29 = 2lb

therefore, 29/2 = lb

therefore, 14.5 m = lb

THEREFORE, THE AREA OF IT'S BASE = 14.5 M.

Step-by-step explanation: