Unit 2 Lesson 03 Angle Pairs

Front

What are adjacent angles?

Back

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

Front

Which angles are considered a linear pair?

Back

A linear pair consists of two adjacent angles whose non-common sides form a straight line.

Front

Define vertical angles.

Back

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

Front

What is the sum of complementary angles?

Back

The sum of complementary angles is 90 degrees.

Front

What is the sum of supplementary angles?

Back

The sum of supplementary angles is 180 degrees.

Front

Identify a pair of adjacent angles from the following: ∠AOB and ∠BOC.

Back

∠AOB and ∠BOC are adjacent angles because they share a common side (OB) and a common vertex (O).

Front

If ∠1 and ∠2 are vertical angles, what can be said about their measures?

Back

If ∠1 and ∠2 are vertical angles, then their measures are equal.

Front

What is the relationship between a linear pair of angles?

Back

A linear pair of angles are supplementary, meaning their measures add up to 180 degrees.

Front

Provide an example of complementary angles.

Back

An example of complementary angles is ∠30° and ∠60°, since 30° + 60° = 90°.

Front

What is the difference between adjacent angles and vertical angles?

Back

Adjacent angles share a common side and vertex, while vertical angles are opposite each other and are equal.