Basics of Geometry Vocab

What is an angle?

• Figure formed by two lines

• Figure formed by two planes

• Figure formed by two rays

• Figure formed bye two endpoints

Opposite rays:

• Form a straight angle

• Form a right angle

• Are congruent

• Go the same direction

To bisect means to:

• cut into two pieces

• cut in half

• be parallel

• intersect

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CCSS.HSG.GPE.B.6

A straight path that goes on forever in one direction

• Line

• Ray

• Line Segment

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CCSS.4.G.A.1

A part of a line bound by two endpoints.

(a)  

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CCSS.HSG.CO.A.1

What is the name for the segment shown in the circle?

(a)  

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CCSS.HSG.C.A.2

An angle that measures less than 90 degrees.

(a)  

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CCSS.4.G.A.1

An angle that measures exactly 90 degrees.

(a)  

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CCSS.4.G.A.1

An angle that measures more than 90 degrees but less than 180 degrees.

(a)  

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CCSS.4.G.A.1

Two angles whose sum is 90 degrees.

(a)  

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CCSS.7.G.B.5