Angle Relationships practice

Front

What are vertical angles?

Back

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

Front

Which angles are complementary?

Back

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

Front

What is the sum of two complementary angles?

Back

The sum of two complementary angles is always 90°.

Front

What is the supplement angle to an angle?

Back

The supplement angle is what, when added to the original angle, equals 180°.

Front

What is the sum of two supplementary angles?

Back

The sum of two supplementary angles is always 180°.

Front

Can two angles be complementary if they are not adjacent?

Back

Yes, complementary angles do not have to be adjacent to each other.

Front

What is the complement angle to 30°?

Back

The complement angle to 30° is 60°.

Front

Is it possible to find the complement angle of 103°?

Back

No, it is not possible because the complement angle would need to be negative.

Front

If ∠BPD and ∠DPC have a sum of 72°, what is the measure of ∠APC if ∠APC is supplementary to ∠BPD?

Back

∠APC = 180° - ∠BPD = 180° - (72° - ∠DPC) = 108°.

Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex.