CPM Homework Help : INT2 Problem 5-119

Determine the values of $θ$ and $α$ in the diagram at right. State the relationships you used.

Note:

There are several correct methods.

Hint 1:

The value of $θ$ can be found by using corresponding and supplementary angles.

Step:

Label added at the intersection of the left parallel line & the top transversal, on the exterior right angle, 112 degrees, with arrow pointing from corresponding 112 degree angle.

Answer 1:

Label added to angle labeled theta, 68 degrees.

Hint 2:

The value of $α$ can be found using corresponding angles.

Answer 2:

Label added to angle labeled alpha, 85 degrees, with arrow pointing from corresponding 85 degree angle.