Measuring Angles

Front

What is an angle?

Back

An angle is formed by two rays (sides) that share a common endpoint (vertex).

Front

What is the unit of measurement for angles?

Back

Angles are measured in degrees.

Tags

CCSS.4.MD.C.6

Front

What is a right angle?

Back

A right angle measures 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is a straight angle?

Back

A straight angle measures 180 degrees.

Tags

CCSS.4.G.A.1

Front

What is a full angle?

Back

A full angle measures 360 degrees.

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Front

How many degrees are in a half circle?

Back

A half circle measures 180 degrees.

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Front

If a pie is cut into 10 equal slices, what is the measure of each slice?

Back

Each slice measures 36 degrees.

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Front

What is the measure of the angle formed by 3 slices of a pie cut into 10 equal slices?

Back

The angle formed by 3 slices is 108 degrees.

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Front

What is a complementary angle?

Back

Complementary angles are two angles that add up to 90 degrees.

Tags

CCSS.7.G.B.5

Front

What is a supplementary angle?

Back

Supplementary angles are two angles that add up to 180 degrees.

Tags

CCSS.7.G.B.5