Mensuration Practice Test 6

Question : 28 of 40

Marks: +1, -0

Find the total surface area of a cuboid if the surface area of the three coterminous faces of cuboid are 48.98, 27.9 and 35.55

cm^2

Solution:

Surface area of the cuboid = 2(lb + bh + hl)
Here, l × b = 48.98 cm
b × h = 27.9
h × l = 35.55

cm^2

So surface area of the cuboid = 2 (48.98 + 27.9 + 35.55)
= 2 × 112.43 ≈ 225

cm^2

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