Uboid volume

Calculate the cuboid volume if the walls are 30cm², 35cm², 42cm²

Correct answer:

V =  210 cm3

Step-by-step explanation:

S1 = ab = 30 S2 = bc = 35 S3 = ac = 42  V = abc S1 S2 S3 = ab   bc ac = a2  b2   c2 S1 S2 S3 = (abc)2 = V2  V = S1 S2 S3 V=30 35 42=210 cm3



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