Question #N336
A right triangle has legs of length 5 and 12. What is the length of the hypotenuse of this triangle?
A. 13
B. 17
C. 19
D. 21
Correct Answer is: A
The Pythagorean Theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the legs. In this case, the hypotenuse squared is equal to 5 squared + 12 squared, or 169. The square root of 169 is 13, so the hypotenuse is 13 units long.