11. The dimensions of a cuboid are in the ratio of 2:3:4 and its total surface area
is 280m2
. Find the dimensions.
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11. The dimensions of a cuboid are in the ratio of 2:3:4 and its total surface area
is 280m2
. Find the dimensions.
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Given :-
:- Dimension of cuboid = 2: 3: 4
let the dimension is 2x, 3x, 4x
:- Total surface area = 280m²
Total surface area of cuboid = 2( lb + bh + hl)
280= 2( 2X×3X + 3X×4X + 4X×2X)
280/2 = 6x² + 12x² + 8x²
140 = 26x²
x²= 140/26
x²= 70/13