### Home > INT2 > Chapter 3 > Lesson 3.2.1 > Problem 3-72

3-72.

Use what you know about the angles of a triangle to determine the value of *x* and the angle(s) in each triangle below. Homework Help ✎

Use the Triangle Angle Sum Theorem.

a. | b. | ||

c. | d. |

3-72.

Use what you know about the angles of a triangle to determine the value of *x* and the angle(s) in each triangle below. Homework Help ✎

Use the Triangle Angle Sum Theorem.

a. | b. | ||

c. | d. |