Parallel Lines and Transversals

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What are Corresponding Angles?

Back

Corresponding angles are pairs of angles that are in similar positions at each intersection where a straight line crosses two others. They are equal in measure when the lines are parallel.

Tags

CCSS.8.G.A.5

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What are Alternate Interior Angles?

Back

Alternate interior angles are pairs of angles that lie between two lines and on opposite sides of a transversal. They are equal when the lines are parallel.

Tags

CCSS.8.G.A.5

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What are Consecutive Interior Angles?

Back

Consecutive interior angles, also known as same-side interior angles, are pairs of angles that lie between two lines and on the same side of a transversal. They are supplementary when the lines are parallel.

Tags

CCSS.8.G.A.5

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What are Alternate Exterior Angles?

Back

Alternate exterior angles are pairs of angles that lie outside two lines and on opposite sides of a transversal. They are equal when the lines are parallel.

Tags

CCSS.8.G.A.5

Front

If angle P measures 60 degrees, what is the measure of angle C if they are corresponding angles?

Back

120 degrees

Tags

CCSS.8.G.A.5

Front

If angle 1 = 27°, what is the measure of angle 4 if they are corresponding angles?

Back

27°

Tags

CCSS.8.G.A.5

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What is the relationship between Supplementary Angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Tags

CCSS.7.G.B.5

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What is the relationship between Congruent Angles?

Back

Congruent angles are angles that have the same measure.

Tags

CCSS.8.G.A.2

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How do you identify Corresponding Angles in a transversal situation?

Back

Look for angles that are in the same relative position at each intersection of the transversal with the two lines.

Tags

CCSS.8.G.A.5

Front

What is the sum of Consecutive Interior Angles when the lines are parallel?

Back

The sum of consecutive interior angles is 180 degrees.

Tags

CCSS.8.G.A.5