Q. 3 C5.0( 1 Vote )

# <span lang="EN-US

Let the Length, breadth and height of the cuboid be 5x,4x

and 2x respectively.

Total Surface Area(TSA) = (LB+BH+LH) =1216

(LB+BH+LH) = 608

[(5x × 4x) +(4x × 2x) +(5x × 2x) =608

[20x2 +8x2+10x2] =608

38x2 = 608

x2 =

x2 = 16

x = 4

The dimension of the cuboid is:

Length = 5x= 5(4) = 20cm

Height = 2x = 2(4) = 8cm

volume = (L×B×H)

Volume = 20 × 16 × 8

Volume = 2560cm2

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