if the length of cube is doubled, by how many times it's volumn and surface area increase
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Answer:
area is increased by 4 time
and volume is increased by 8 time
Answered by
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Answer:
volume of cube= a^3= v1
volume of cube of doubled length= (2a)^3
=>8(a)^3=8(v1)
:. its volume increased by 8 times
surface area of cube= 6(a)^2= s1
if the length is doubled,then
new surface area= 6(2a)^2
=>24(a)^2=4*6(a)^2=4(s1)
:.its surface area is increased by 4times
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