Question 459999
The radius and height of a right cylinder are each divided by square root of 5.
 What is the change in surface area of the cylinder?
:
total S.A. = {{{2*pi*r(r+h)}}}
I inadvertently sent this, let's see if I can solve it
{{{2*pi}}} are the same so we can just deal with r(r+h) = r^2 + rh
{{{(r/sqrt(5))^2}}} = {{{r^2/5}}}
and
{{{r/sqrt(5)}}} * {{{h/sqrt(5)}}} = {{{(rh)/5}}}
same denominator
{{{(r^2+rh)/5}}}
:
I am going to say it divides the surface area by 5