Dimensions 20553

The surface of the block is 558 cm², its dimensions are in the ratio 5: 3: 2.
Calculate the volume.

Correct answer:

V =  810 cm3

Step-by-step explanation:

a=5 x b=3 x c=2 x S=558 cm2  S=2(ab+bc+ac)=2(5 3 x2+3 2 x2+5 2 x2) S=62 x2  x=S/62=558/62=3 cm  a=5 x=5 3=15 cm b=3 x=3 3=9 cm c=2 x=2 3=6 cm  V=a b c=15 9 6=810 cm3

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