Measuring Angles

What type of angle measures LESS than 90 degrees?

• an acute angle

• an obtuse angle

• a right angle

• a straight angle

What type of angle measures MORE than 90 degrees, but not 180 degrees?

• an acute angle

• an obtuse angle

• a right angle

• a straight angle

What is this tool called and what is it used for?

• A ruler used to measure lines.
• A protractor used to measure lines.
• A ruler used to measure angles.
• A protractor used to measure angles.

What is the measure of the angle shown in the picture? 

• 0 degrees
• 45 degrees 
• 90 degrees
• 180 degrees

What is the name of this ray?

• $\overrightarrow{AB}$

• $\overrightarrow{BA}$

• $\overrightarrow{A}$

• $\overrightarrow{B}$

Refer to the diagram above.
Correctly name the plane.  Choose all that apply.

• plane EFC

• plane ABC

• plane  $Z$  

• plane BFD

_{What is the measure of the angle?}

• 110 degrees.

• 140 degrees.

• 150 degrees.

• 169 degrees.

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

• 102 degrees.

• 11 degrees.

• 190 degrees.

• 58 degrees.

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

• 21 degrees.
• 34 degrees.
• 70 degrees.
• 172 degrees. 

What is the measure of the angle shown in the picture? 

• 0 degrees
• 45 degrees 
• 90 degrees
• 180 degrees