Question

Find the length of the hypotenuse of a right triangle with legs of lengths 5 and 12. If necessary, round your answer to two decimal places

Answer 1

Let "c" be the hypotenuse
 
By the Pythagorean theorem:

c² = 5² + 12² = 25 + 144 = 169
с = √169 = 13 units  ← answer