Here's the question you clicked on:
qwertyfreak
Use the Pythagorean Theorem to find the length of the diagonal. Round to the nearest tenth, if necessary.? Picture: http://www.flickr.com/photos/75076055 @N05/6986547896/ 6 4.9 3.5
Oops! Looks like you followed a bad link
you have to copy and paste the whole thing, dont just click on the blue part, sorry!
What is the problem here, you don't know the theorem?
x =sqrt [(sqrt6)^2 + (sqrt6)^2]