Question

Each edge of a cube is increased by 20%. What is the percentage increase in the volume of the cube?

Answer 1

Answer:

Step-by-step explanation:

volume (V)=length(L)^3

if L increased by 3 V is increased by 3^3(27)

Lf=Li+20%Li     Lf=120%Li

so Vf=(120%)^3 Vi

vf=172.8% vi=Vi+72.8%Vi

so volume increase by 72.8%