if the diameter scales by a factor of x, the volume grows by x^3.
So, if d -> 1.2d
v -> 1.2^3 v = 1.728v
That is, it grows by 72.8%
If the diameter of a sphere is increase by 20% the volume also increased by x% find x??
8 answers
How did u got 72.8% but i get what your are saying tnx
I don't think Steve is on line right now, so ...
look at his
1.728v
= (1 + .728)v
= (100% + 72.8%)v , since 100% = 100/100 = 1
can you see where it came from?
look at his
1.728v
= (1 + .728)v
= (100% + 72.8%)v , since 100% = 100/100 = 1
can you see where it came from?
Tnx reiny........bess yah
Dang it, buddy, you're taking all the mystery out of math!
What happen steve why??
Let the diameter be 100cm
Then,its volume=(4/3)π50³
When diameter increased by 20%,diameter becomes 120cm
Then its volume =(4/3)π60³
%increase in volume=
{[(4/3)π60³-(4/3)π50³]/(4/3)π50³}X100
=(21600000-12500000)/125000
=72.8%
Then,its volume=(4/3)π50³
When diameter increased by 20%,diameter becomes 120cm
Then its volume =(4/3)π60³
%increase in volume=
{[(4/3)π60³-(4/3)π50³]/(4/3)π50³}X100
=(21600000-12500000)/125000
=72.8%
yea nah don't get it