Mathematics - Angles for Kids! | Acute, Obtuse and Straight

What is an angle formed by in a classroom setting?

• When a protractor is placed on the desk

• When two pencils are laid end to end

• When three desks are arranged together

• When two rulers meet at a common point on a drawing

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CCSS.HSG.CO.A.1

CCSS.4.MD.C.5B

What do we call the common point where two lines meet to form an angle?

• Intersection

• Vertex

• Edge

• Center

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CCSS.HSG.CO.A.1

What is the measure of a right angle?

• 90 degrees

• 45 degrees

• 360 degrees

• 180 degrees

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CCSS.4.G.A.1

Which of these is an example of an acute angle?

• A square corner

• A complete circle

• A straight line

• The top of a pizza slice

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CCSS.4.G.A.1

What is the range of an obtuse angle?

• Greater than 0 but less than 90 degrees

• Greater than 90 degrees but less than 180 degrees

• Exactly 90 degrees

• Exactly 180 degrees

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CCSS.4.G.A.1

What tool is used to measure angles?

• Stopwatch

• Ruler

• Compass

• Protractor

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CCSS.4.MD.C.6

What kind of angle is formed when the arms of the angle are exactly opposite each other?

• Straight angle

• Obtuse angle

• Right angle

• Acute angle

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CCSS.4.G.A.1

What is a reflex angle?

• An angle greater than 180 degrees but less than 360 degrees

• An angle less than 90 degrees

• An angle of exactly 360 degrees

• An angle of exactly 180 degrees

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CCSS.4.G.A.1

What does a complete 360 degree rotation represent?

• Revolution

• Reflex angle

• Straight angle

• Acute angle

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CCSS.HSG.CO.A.1

CCSS.4.MD.C.5B

If an angle measures 50 degrees, what kind of angle is it?

• Acute angle

• Obtuse angle

• Straight angle

• Right angle

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CCSS.4.G.A.1