Introduction to Geometry

A flat surface that extends endlessly in all directions is called a

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CCSS.HSG.CO.A.1

A collection of points along a straight path that extends endlessly in both directions is called a

• Point

• Line

• Plane

• Ray

• Line Segment

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CCSS.HSG.CO.A.1

An __________ consist of two rays that have a common endpoint called the vertex.

What is the arrow pointing to in the angle?

• a ray

• geometry

• vertex

• line

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CCSS.HSG.CO.A.1

Give another name for line k.

• Line BC
• Line BCE
• Line ED
• Line K is the only name, there is not another name.

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CCSS.HSG.CO.A.1

Use geometric terms to describe what is shown.

• plane

• parallel lines

• perpendicular lines

• point

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TEKS.MATH.4.6A

Points that lie on the same line are _________.

• coplanar
• collinear
• parallel
• perpendicular

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CCSS.4.G.A.1

Points that lie on the same plane are ________. 

• collinear
• coplanar
• parallel
• perpendicular

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CCSS.HSG.CO.A.1

An example of 2 non-collinear points.

• D, E
• C, B
• M, E
• F, B

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CCSS.HSG.CO.A.1

Do P and Q intersect?

• Yes

• No

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CCSS.HSG.CO.A.1