Classify and Measure Angles

Front

Name this angle: 45 degrees

Back

acute

Front

What is the measure of this angle? (Image of an angle measuring 54 degrees)

Back

54 degrees

Front

This is what kind of angle? (Image of an angle measuring 120 degrees)

Back

obtuse

Front

Another name for a right angle is ___________.

Back

90 degree angle

Front

Which angle has a measure of 128 degrees? (Image of an angle measuring 128 degrees)

Back

obtuse

Front

What is the measure of a right angle?

Back

90 degrees

Front

Define an acute angle.

Back

An angle that measures less than 90 degrees.

Front

Define an obtuse angle.

Back

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

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What is the sum of angles in a triangle?

Back

180 degrees.