Key Language of Angles and Polygons

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What is an Acute Angle?
An angle smaller that a right angle
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What is an Right Angle?
90 degrees or a one quarter turn
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What is an obtuse angle?
Greater than 90 degrees but smaller than 180 degrees
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What is an reflex angle?
Greater than 180 degrees but smaller than 360 degrees
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What are alternate angles?
When referring to parallel lines: angles in the corners of a Z shape
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What are corresponding angles?
When referring to parallel lines: angles under the arms of an F shape
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Other cards in this set

Card 2

Front

What is an Right Angle?

Back

90 degrees or a one quarter turn

Card 3

Front

What is an obtuse angle?

Back

Preview of the front of card 3

Card 4

Front

What is an reflex angle?

Back

Preview of the front of card 4

Card 5

Front

What are alternate angles?

Back

Preview of the front of card 5
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