### Home > GC > Chapter 7 > Lesson 7.1.3 > Problem 7-33

7-33.

Since the triangle is isosceles, the angles shown are equal.

*n* = 4°

First solve for *x*, then *y*. Refer to the Math Notes box in Lesson 2.1.4 if you need help remembering any specific angle pair relationships.

Same side interior angles are supplementary.

*w* = 18°

Use the Law of Cosines to solve for *k*.