Measuring Angles

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 measure of the angle shown in the picture?

• 20 degrees
• 27 degrees
• 30 degrees
• 153 degrees

How many degrees are in a circle?

• 45 degrees
• 90 degrees
• 180 degrees
• 360 degrees

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

• 53 degrees; acute
• 53 degrees; obtuse
• 127 degrees; acute
• 127 degrees; obtuse

What is the measure of ∠DEF

in the figure below?

• 40 degrees

• 80 degrees

• 90 degrees

• 140 degrees

Which angle measures about 20 degrees?

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Which clock shows the hands forming a 180° angle?

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Which shows an angle that is 162°?

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Which type of angle is pictured?

• Acute
• Right
• Obtuse
• Straight