8th Angle Relationships

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Tags

CCSS.7.G.B.5

Front

What is the measure of a straight angle?

Back

A straight angle measures 180 degrees.

Tags

CCSS.4.G.A.1

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose sum is 180 degrees.

Tags

CCSS.7.G.B.5

Front

What are complementary angles?

Back

Complementary angles are two angles whose sum is 90 degrees.

Tags

CCSS.7.G.B.5

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Tags

CCSS.4.G.A.1

Front

What is the relationship between same-side interior angles?

Back

Same-side interior angles are angles that lie on the same side of the transversal and between the two lines. They are supplementary.

Tags

CCSS.8.G.A.5

Front

What are alternating interior angles?

Back

Alternating 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

Front

What are alternating exterior angles?

Back

Alternating 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 two angles are vertical angles, what can we say about their measures?

Back

Vertical angles are always equal in measure.

Tags

CCSS.7.G.B.5