Vertical Angles

Front

What are vertical angles?

Back

Vertical angles are angles that are opposite each other when two lines intersect. They are always congruent (equal in measure).

Tags

CCSS.7.G.B.5

Front

Vertical angles are always:

Back

Congruent (equal measures).

Tags

CCSS.7.G.B.5

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Tags

CCSS.7.G.B.5

Front

If two angles are supplementary, what is their sum?

Back

Their sum is 180°.

Tags

CCSS.7.G.B.5

Front

If m∠1 = 30°, what is m∠2 if m∠1 and m∠2 are supplementary?

Back

m∠2 = 150°.

Tags

CCSS.7.G.B.5

Front

What is the measure of the missing angle if one angle is 76°?

Back

The missing angle is 104° (since 180° - 76° = 104°).

Tags

CCSS.7.G.B.5

Front

What are complementary angles?

Back

Angles that add up to 90°.

Tags

CCSS.7.G.B.5

Front

If m∠3 = 60°, what is m∠4 if m∠3 and m∠4 are complementary?

Back

m∠4 = 30°.

Tags

CCSS.7.G.B.5

Front

What is the relationship between adjacent angles?

Back

Adjacent angles share a common side and vertex but do not overlap.

Tags

CCSS.7.G.B.5

Front

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

Back

Their measures are equal.

Tags

CCSS.7.G.B.5