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

Tags

CCSS.4.MD.C.6

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

Tags

CCSS.4.MD.C.6

Which of the following books is open 180°?

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Which angle measures about 20 degrees?

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• 
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• 

What is the measure of ∠DEF

in the figure below?

• 40 degrees

• 80 degrees

• 90 degrees

• 140 degrees

Which angle type is pictured?

• Acute
• Right
• Obtuse
• Straight

Tags

CCSS.4.G.A.1

Which type of angle is pictured?

• Acute
• Right
• Obtuse
• Straight

What is this?

• Line
• Ray
• Line segment
• Angle

Tags

CCSS.4.G.A.1