Types of Angles

Front

What is an acute angle?

Back

An angle that is less than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is an obtuse angle?

Back

An angle that is greater than 90 degrees but less than 180 degrees.

Tags

CCSS.4.G.A.1

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Tags

CCSS.4.G.A.1

Front

What is a reflex angle?

Back

An angle that is greater than 180 degrees but less than 360 degrees.

Tags

CCSS.4.G.A.1

Front

How many degrees are in a full rotation?

Back

360 degrees.

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Front

What type of angle is 90 degrees?

Back

Right angle.

Tags

CCSS.4.G.A.1

Front

What type of angle is 45 degrees?

Back

Acute angle.

Tags

CCSS.4.G.A.1

Front

What type of angle is 120 degrees?

Back

Obtuse angle.

Tags

CCSS.4.G.A.1

Front

What type of angle is 270 degrees?

Back

Reflex angle.

Tags

CCSS.4.G.A.1