Posted by Diana on Friday, January 28, 2011 at 8:14am.
A triangle with side lengths 26, 28, and 30 is constructed so that the longest and shortest sides are tangent to a circle. the third side passes through the center of the circle. compute the radius of the circle.
I DON'T KNOW HOW TO DO THIS AT ALL....

MATH!!!!  Reiny, Friday, January 28, 2011 at 8:21am
The same question appears below in the "related question" section
http://www.jiskha.com/display.cgi?id=1294718926
Let me know if that helped. 
MATH!!!!  Diana, Friday, January 28, 2011 at 8:24am
yes that helps. sorry i feel dumb when I ask questions alerdady on here. =/

MATH!!!!  Diana, Friday, January 28, 2011 at 8:24am
already*

MATH!!!!  Reiny, Friday, January 28, 2011 at 8:29am
no problem, the feature below is a relatively new feature of jishka.

MATH!!!!  Diana, Friday, January 28, 2011 at 8:30am
Im new, and I just noticed that....Thanks