Math
posted by J on .
The hypotenuse (side C) of a triangle is 13 inches long. Which of the following pairs of measurements could be correct for the lengths of the other two sides of the triangle? (Note: N + 82 =C2)
A. 2.5 inches,4 inches
B. 2.5 inches, 6 inches
C.5inches, 8inches
D.5inches, 12inches

There are several standard right triangles with integer sides. It will help a lot if you just learn them  they turn up often in problems, and it's nice not to have to do the calculations every time.
345
51213
81517
72425
and multiples of those values 
Thank you!

5 inches, 12 inches

D. 5 inches, 12 inches