Types of Angles

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is an obtuse angle?

Back

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

Tags

CCSS.4.G.A.1

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

How many degrees are in a full circle?

Back

A full circle has 360 degrees.

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Front

What type of angle is 45 degrees?

Back

45 degrees is an acute angle.

Tags

CCSS.4.G.A.1

Front

What type of angle is 120 degrees?

Back

120 degrees is an obtuse angle.

Tags

CCSS.4.G.A.1

Front

What type of angle is 90 degrees?

Back

90 degrees is a right angle.

Tags

CCSS.4.G.A.1

Front

If an angle measures 180 degrees, what type of angle is it?

Back

An angle that measures 180 degrees is a straight angle.

Tags

CCSS.4.G.A.1

Front

What is the sum of angles in a triangle?

Back

The sum of angles in a triangle is always 180 degrees.

Tags

CCSS.8.G.A.5

Front

What is a complementary angle?

Back

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

Tags

CCSS.7.G.B.5