Question

The length, breadth and height of a cuboid are in the ratio 3:2:1. It's volume is 384cm2. Find the total surface area of the cuboid.

Answer 1

L = 3x
B = 2x
H = x

V = L * B * H
384 = 3x*2x*x
384 = 6x^3
384 /6 = x^3
64 = x^3
4 = x
L = 3 * 4= 12 cm
B = 2 * 4 = 8 cm
H = 4 cm

Answer 2

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