Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex, and do not overlap.

Front

What is the definition of vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90°.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180°.

Front

If two angles are complementary and one angle measures 35°, what is the measure of the other angle?

Back

The other angle measures 55° (90° - 35° = 55°).

Front

If two angles are supplementary and one angle measures 120°, what is the measure of the other angle?

Back

The other angle measures 60° (180° - 120° = 60°).

Front

What is the relationship between angle pairs ∠COB and ∠AOD?

Back

∠COB and ∠AOD are vertical angles.

Front

If ∠7 and ∠TPU are adjacent, what can be said about their position?

Back

They share a common side and vertex.

Front

How do you find the value of x in complementary angles?

Back

Set up the equation based on the sum of the angles equaling 90° and solve for x.

Front

How do you find the value of x in supplementary angles?

Back

Set up the equation based on the sum of the angles equaling 180° and solve for x.