Centimeters 72534

Calculate the edge c and the surface S of a block if its volume is equal to 42 cubic centimeters, a = 6cm, b = 3.5cm, c =?

Correct answer:

c =  2 cm
S =  80 cm2

Step-by-step explanation:

V=42 cm3 a=6 cm b=3.5 cm  V=abc c=a bV=6 3.542=2 cm
S=2 (a b+b c+c a)=2 (6 3.5+3.5 2+2 6)=80 cm2

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