Types of Angles and Lines

What is the definition of a right angle?

• An angle that is open less than a right angle and has a measure less than 90 degrees.

• An angle that forms a square corner and has a measure of 90 degrees.

• An angle that is open more than a right angle but less than a straight angle. This angle measures between 90 and 180 degrees.

• Lines that never intersect.

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CCSS.4.G.A.1

What is the definition of an acute angle?

• Lines that intersect to form right angles.

• An angle that is open more than a right angle but less than a straight angle. This angle measures between 90 and 180 degrees.

• An angle that forms a square corner and has a measure of 90 degrees.

• An angle that is open less than a right angle and has a measure less than 90 degrees.

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CCSS.4.G.A.1

CCSS.4.MD.C.5

What is the definition of an obtuse angle?

• An angle that is open more than a right angle but less than a straight angle. This angle measures between 90 and 180 degrees.

• An angle that forms a square corner and has a measure of 90 degrees.

• An angle that is open less than a right angle and has a measure less than 90 degrees.

• Lines that intersect to form right angles.

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CCSS.4.G.A.1

CCSS.4.MD.C.5

What is the definition of parallel lines?

• Lines that intersect to form right angles.

• Lines that intersect.

• Lines that never intersect.

• Lines that are straight.

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CCSS.HSG.CO.A.1

What is the definition of perpendicular lines?

• Lines that never intersect.

• Lines that intersect to form right angles.

• Lines that intersect at any angle.

• Lines that are straight.

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CCSS.4.G.A.1

CCSS.4.G.A.2

What is this a picture of?

• Acute angle

• Obtuse angle

• Parallel lines

• Perpendicular lines

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CCSS.4.G.A.1

CCSS.HSG.CO.A.1

What is this a picture of?

• Right angle

• Parallel lines

• Acute angle

• Obtuse angle

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CCSS.4.G.A.1

CCSS.4.G.A.2

What is this a picture of?

• Acute angle

• Right angle

• Perpendicular lines

• Obtuse angle

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CCSS.4.G.A.1

What is this a picture of?

• Perpendicular lines

• Parallel lines

• Acute angle

• Obtuse angle

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CCSS.4.G.A.1

CCSS.4.G.A.2

What is this a picture of?

• Acute angle

• Obtuse angle

• Right angle

• Parallel lines

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

CCSS.4.MD.C.5