Thursday

May 5, 2016
Posted by **Rose** on Saturday, March 9, 2013 at 4:00pm.

Image: i.imgur(dot)com/f4ThxTu.jpg

- Geometry Inscribed -
**Reiny**, Saturday, March 9, 2013 at 8:39pmI looked at your diagram and noticed that you sketched a line from D to AB

That was good, now let the point of contact be E

so clearly triangle ADE is right-angled

with AE = 9 and DE = 23

by Pythagoras:

AD^2 = 9^2 + 23^2 = 610

AD = √610 = appr 24.7