The length ,breadth and height of a cuboidal box are in the ratio 3:2:1. If the volume of the box is 483,the total surface area of the box is ------------2.
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Answer:
l=3x
b=2x
h=x
volume=l×b×h=6x³
6x³=483
x³=483÷6
x³=80.5
x=(80.5)⅓
x=4.318
l=12.954
b=8.636
h=4.318
Total surface area=2(lb+bh+hl)
=2(12.954×8.636+8.636×4.318+4.318×12.954)
=410.192728
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