+0

# hi how r u

0
671
3

hi how r u

May 8, 2014

#2
+3

$$r*U = r*(2*\pi *r)=2*\pi*r^2=2*(\pi*r^2)=2*A\quad \quad U=2\pi r$$

$$\boxed{rU=2A}$$

.
May 8, 2014

#1
+1006
0

Well, I just woke up and I have a hands-on test in Biology in a little over an hour, so right now I'm kinda out of it.

May 8, 2014
#2
+3

$$r*U = r*(2*\pi *r)=2*\pi*r^2=2*(\pi*r^2)=2*A\quad \quad U=2\pi r$$

$$\boxed{rU=2A}$$

Guest May 8, 2014
#3
0

not the greatest... i have to take a test tomorrow (Friday) in math and english.

May 8, 2014