More Pythagorean Theorem help

some examples:

Example 1

Find the length of the hypotenuse of a right triangle if the length of its sides are 5 inches and 12 inches.

Solution 1

Example 2

A person drives 33 miles due east, then makes a left turn, and drives 56 miles north. How far is he from his starting point?

Solution 2

The right triangle is shown in Fig. 9-24.

Fig. 9-24.

Then