Identify Angles: Right, Acute, & Obtuse

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

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

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What type of angle is 180 degrees?

Back

Straight angle.

Front

What type of angle is 90 degrees?

Back

Right angle.

Front

What type of angle is 45 degrees?

Back

Acute angle.

Front

What type of angle is 120 degrees?

Back

Obtuse angle.

Front

If angle CBD is acute, what can you say about its measurement?

Back

It measures less than 90 degrees.

Front

Which angle is larger: 85 degrees or 95 degrees?

Back

95 degrees (obtuse angle).

Front

Which angle is smaller: 30 degrees or 60 degrees?

Back

30 degrees (acute angle).