Points, Lines, & Angles

An angle that forms a square corner is called 

• a right angle
• an acute angle
• an obtuse angle
• a straight angle

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CCSS.4.G.A.1

CCSS.4.G.A.2

• parallel lines
• perpendicular lines
• intersecting lines
• a ray

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CCSS.4.G.A.2

• parallel lines

• perpendicular lines

• a parallelogram

• a ray

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CCSS.4.G.A.1

CCSS.4.G.A.2

• parallel lines
• perpendicular lines
• intersecting lines
• a ray

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CCSS.4.G.A.1

CCSS.4.G.A.2

• parallel lines
• perpendicular lines
• intersecting lines
• a ray

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CCSS.4.G.A.2

What is this?

• Points

• Dots

• Lines

• Line segment

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What is this?

• Line segments

• line

• point

• end caps

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CCSS.4.G.A.1

What does the image show?
(The whole thing, not just the points)

• a ray
• a line
• parallel lines
• line segment

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CCSS.4.G.A.1

Parallel lines ...

• will never intersect
• intersect to form right angles
• are curved lines

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CCSS.4.G.A.1

CCSS.4.G.A.2

Perpendicular lines...

• will never intersect
• intersect to form right angles
• are curved lines

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CCSS.4.G.A.1

CCSS.4.G.A.2