SOLUTION: Ellen's computer screen is a 20 inch screen, which means that the length of the diagonal of the rectangular screen is 20 inches. The screen can be laid flat so that it just fits in

Algebra ->  Pythagorean-theorem -> SOLUTION: Ellen's computer screen is a 20 inch screen, which means that the length of the diagonal of the rectangular screen is 20 inches. The screen can be laid flat so that it just fits in      Log On


   



Question 1134723: Ellen's computer screen is a 20 inch screen, which means that the length of the diagonal of the rectangular screen is 20 inches. The screen can be laid flat so that it just fits into a box that is 12 inches wide. How long is the box?
Answer by ikleyn(52847) About Me  (Show Source):
You can put this solution on YOUR website!
.
sqrt%2820%5E2-12%5E2%29.

Use your calculator.