lines, angles and triangles

What is a vertex? 

• It is a point.
• It is not a side.
• It is a corner or a point where lines meet.
• It is where the lines are parallel to each other. 

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CCSS.HSG.CO.A.1

Is this a polygon?

• yes
• no

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CCSS.2.G.A.1

Why is a circle not a polygon?

• It has one angle.
• It is too wide.
• It has no sides or angles.
• It is not a triangle.

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CCSS.1.G.A.1

CCSS.2.G.A.1

What are perpendicular lines?

• Lines that never intersect
• lines that pass through the same point
• Lines that form square corners
• Lines that curve on an angle

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CCSS.4.G.A.1

CCSS.HSG.CO.A.1

What are intersecting lines?

• Lines that never cross
• lines that from square corners
• lines that pass through the same point
• Lines that curve on an angle

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CCSS.4.G.A.1

CCSS.HSG.CO.A.1

What are parallel lines?

• Lines that form square corners
• lines that never intersect
• lines that pass through the same point
• lines that curve on an angle

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CCSS.4.G.A.1

CCSS.HSG.CO.A.1

What is a point?

• a straight path
• an exact location
• endless flat surface
• lines that cross

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CCSS.HSG.CO.A.1

What type of line does this picture show?

• perpendicular
• parallel
• intersecting
• line

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CCSS.4.G.A.1

CCSS.HSG.CO.A.1

What type of line does this picture show?

• parallel
• line
• perpendicular
• segment

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CCSS.4.G.A.1

CCSS.HSG.CO.A.1

What type of line is shown by the hands on the clock?

• parallel
• line segment
• intersecting
• perpendicular

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CCSS.4.G.A.1

CCSS.HSG.CO.A.1