Cube zoom

How many percents do we increase the volume and surface of the cube if we magnify its edge by 38 %?

Correct result:

Δ V =  162.8 %
Δ S =  90.4 %

Solution:

ΔV=100V2−V1V1=100(V2/V1−1) ΔV=100⋅((1+38100)3−1)=162.8%
ΔS=100S2−S1S1=100(S2/S1−1) ΔS=100⋅((1+38100)2−1)=90.4%

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