Question

the Length breadth and height of a cuboid are in the ratio of 4:3:2, and its total surface area is 5200 cm². find the dimension of the cuboid.​

Answer 1

let's see, this is the answer...

Answer 2

Hi

Length breadth height are in ratio

$4x \: \: 3x \: \: 2x$

surface area 5200

TSA=2(Lb+Bh+Hl)

$2(4x \times 3x + 3x \times 2x + 2x \times 4x) \\ 2(12x + 6x + 8x) \\ 2 \times 26x \\ 52x = 5200 \\ x = 100$

So. x=100cm^2
x=10

$4x = 40cm \\ 3x = 30 cm\\ 2x = 20cm$

the dimensions are

40cm

30cm

and20cm

thanks

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