Remember geometric angle relationships.
If the lines are parallel, what must be true about the alternate interior angles?
What is always true about vertical angles?
65 = 4x − 3y
3x − y = 2x + 3y
How can you find the measure of the third angle?
Write and solve a system of equations based on the properties.
Once you find x and y, find the measures of the angles in ΔCPM.
∠CPM = 60°