the surface area of the cuboid is 1372 square CM if its dimensions are in the ratio of 4 ratio 2 ratio 1 then find its length
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Answered by
5
Surface area of cuboid = 2(lb+bh+hl)
1372= 2[(4x)(2x) + (2x)(x) +(4x)(x)]
1372 = 2 × 14x^2
1372 = 28x^2
x^2 = 49
x = 7 cm
so length= 4x = 28 cm
breadth= 2x =14 cm
height = x = 7 cm
1372= 2[(4x)(2x) + (2x)(x) +(4x)(x)]
1372 = 2 × 14x^2
1372 = 28x^2
x^2 = 49
x = 7 cm
so length= 4x = 28 cm
breadth= 2x =14 cm
height = x = 7 cm
Answered by
0
The surface area of cuboid =l*b*h=1372
L*8=1372
L=1372\2
L=686
I hope answer is correct
L*8=1372
L=1372\2
L=686
I hope answer is correct
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