Unit 1 Part 2 Angle Vocabulary

Front

Complementary Angles

Back

Two angles that add up to 90 degrees.

Front

Sides of an Angle

Back

Rays.

Front

Vertex of an Angle

Back

The point where the two rays meet.

Front

Right Angle

Back

An angle equal to 90 degrees.

Front

What are the arrows pointing to?

Back

The sides of angle CAB.

Front

Acute Angle

Back

An angle that measures less than 90 degrees.

Front

Obtuse Angle

Back

An angle that measures more than 90 degrees but less than 180 degrees.

Front

Straight Angle

Back

An angle that measures exactly 180 degrees.

Front

Reflex Angle

Back

An angle that measures more than 180 degrees but less than 360 degrees.

Front

Adjacent Angles

Back

Two angles that share a common side and vertex.