Measuring Angles

An angle whose measure is exactly 90 degrees.

• acute
• vertical
• right
• straight

Angles whose measure sum up to 180 degrees.

• Vertical

• Adjacent

• Complementary

• Supplementary

How many degrees is a straight angle?

• 90
• 360
• 180
• 145

This is what kind of angle?

• acute
• obtuse
• right
• straight

This is what kind of angle?

• right
• acute
• obtuse
• straight

This is what kind of angle?

• obtuse
• right
• straight
• acute

Angles are measured using a ______.

• compass
• protractor
• ruler
• prospector

^{_{What is the measure of the following angle?}} 

• 120 degrees.
• 171 degrees.
• 60 degres.
• 10 degrees.

_{What is the measure of the following angle?}  

• 56 degrees.
• 180 degrees.
• 142 degrees.
• 97 degrees. 

_{What is the measure of the following angle?}  

• 10 degrees.
• 40 degrees.
• 67 degrees.
• 168 degrees.