# Missing Angle: Vertical Angles

Figure out the value of the missing angle using the fact that the measure of vertical angles have the same measure.

Choose the correct answer

**Note:**Vertical angles are angles that are opposite to each other and are formed by two intersecting straight lines. Vertical Angles Theorem states that vertical angles are congruent or same.

**Example:**Line AB and Line CD are intersecting lines. If angle AEC is 40°, what is angle AED?

E

C

A

B

D

150°

140°

130°