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Lines, Line Segments, Rays

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**Line- a straight path that goes in two directions without ending.**

B AB Read: “Line AB”

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**A ray has one end point and goes on forever in only one direction.**

CD Read: “Ray CD”

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**E F EF Line Segment Read: “Line Segment EF”**

A line segment has two endpoints. E F Read: “Line Segment EF” EF

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**Identify the type of line: line, ray, or line segment.**

Your Turn! Identify the type of line: line, ray, or line segment. Line Segment

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**Identify the type of line: line, ray, or line segment.**

Your Turn! Identify the type of line: line, ray, or line segment. Line

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**Identify the type of line: line, ray, or line segment.**

Your Turn! Identify the type of line: line, ray, or line segment. Ray

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**Identify the type of line: line, ray, or line segment.**

Your Turn! Identify the type of line: line, ray, or line segment. Line

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**Identify the type of line: line, ray, or line segment.**

Your Turn! Identify the type of line: line, ray, or line segment. Ray

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**Identify the type of line: line, ray, or line segment.**

Your Turn! Identify the type of line: line, ray, or line segment. Line Segment

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**Read: “Line JK is parallel to line LM”**

Parallel Lines Parallel Lines- lines that never cross or become further apart from each other. J K L M Read: “Line JK is parallel to line LM” ║ JK LM

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**Intersecting Lines- lines that cross each other.**

Q P OP intersects QR

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**Read: “Line ST is perpendicular to line UV”**

Perpendicular Lines Perpendicular Lines- lines that cross or meet each other to form square corners (90º angle). U 90º/Right Angle S T Read: “Line ST is perpendicular to line UV” V ST ┴ UV

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Your Turn! Identify if the lines are parallel, perpendicular, or intersecting (not at a perpendicular angle). Parallel

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Your Turn! Identify if the lines are parallel, perpendicular, or intersecting (not at a perpendicular angle). Parallel

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**Your Turn! Intersecting**

Identify if the lines are parallel, perpendicular, or intersecting (not at a perpendicular angle). Intersecting

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**Your Turn! Perpendicular**

Identify if the lines are parallel, perpendicular, or intersecting (not at a perpendicular angle). Perpendicular

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Your Turn! Identify if the lines are parallel, perpendicular, or intersecting (not at a perpendicular angle). Parallel

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**Your Turn! Intersecting**

Identify if the lines are parallel, perpendicular, or intersecting (not at a perpendicular angle). Intersecting

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**Your Turn! Perpendicular**

Identify if the lines are parallel, perpendicular, or intersecting (not at a perpendicular angle). Perpendicular

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