### Home > CCG > Chapter 4 > Lesson 4.1.2 > Problem 4-17

4-17.

Use your Trig Table Toolkit from problem 4‑16 to help you find the value of each variable below.

Review the Math Notes box in this lesson.

Triangle Angle Sum Theorem,

Notice that the legs of the right triangle are the same lengths.

Look at the hints in part (a).