We can use two different methods to find our missing angle:

How to find missing vertical angles. If you're seeing this message, it means we're having trouble loading external. Looking for the measurements of the interior angles of a given triangle? Subtract the given angles from 180 to get the missing angle.

Trying to find a missing interior angle measurement in a triangle? Given the diagram below, determine the values of the angles x, y and z. Angles a° and c° are also vertical.

X is a supplement of 65°. I use vertical angles and supplementary angle relationships to solve the. They are also congruent, or equal to.

Finding missing angles vertical and supplementary angles. Solution we have been given that lines l and m are parallel. Here, d = 36 o and a, b and c are unknown.

By the rule of vertical angles, b = d = 36 o then, a = c =? They have no sides in common. Vertical angles are across the street from one another and are equal.

Practice using knowledge of vertical, complementary, and supplementary angles to find a missing angle. The triangle sum theorem might help. What is the missing angle?