Vertical Angles

Adjacent Angles

Complimentary Angles

Linear Pair

If angles DEC and AEF are vertical angles, and angle DEC measures 120 degrees, what is the measure of angle AEF?

Angles AEC and CEF are complimentary angles. If angle AEC measures 35 degrees, what is the measure of angle CEF?

Angles EDH and HDF are adjacent angles. If angle EDF measures 110 degrees, and angle EDH measures 50 degrees, what is the measure of angle HDF?

If angles ABG and GBD are a linear pair, and the measure of angle ABG is 75 degrees, what is the measure of angle GBD?