The dimensions of a cuboid are in the ratio 3:4:5. And it's total surface area is 3384 CM. Find the dimensions of cuboid
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Answer:the dimensions of cuboid are given in the ratio of 3:4:5 ,therefore we can write
Length=3x
Breadth=4x
Height=5x
Total surface area =2(lb+bh+lh)=3384
2(3x*4x+4x*5x+3x*5x)=3384
2(12x2+20x2+15x2)=3384
This x2= x square
47x2=3384/2
X2=1692/47
X2=36
X=6
Length=3x=3*6=18cm
Breadth=4x=24 cm
Height=5x=5*6=30 cm
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