Vertical Angles

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

If m∠1 = 30°, what is m∠3?

Back

30° (because vertical angles are equal).

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

Front

What is the sum of the measures of angles around a point?

Back

360°.

Tags

CCSS.7.G.B.5

Front

If m∠A + m∠B = 180°, what type of angles are A and B?

Back

They are supplementary angles.

Tags

CCSS.7.G.B.5

Front

If m∠1 = 60°, what is m∠2 if m∠1 and m∠2 are vertical angles?

Back

60° (because vertical angles are equal).

Tags

CCSS.7.G.B.5

Front

What is the relationship between adjacent angles formed by intersecting lines?

Back

Adjacent angles are angles that share a common side and vertex.

Tags

CCSS.7.G.B.5

Front

If m∠X = 45°, what is m∠Y if m∠X and m∠Y are vertical angles?

Back

45° (because vertical angles are equal).

Tags

CCSS.7.G.B.5

Front

What is the measure of an angle that is supplementary to a 90° angle?

Back

90° (because 90° + 90° = 180°).

Tags

CCSS.7.G.B.5

Front

If m∠A = 135°, what is the measure of the angle adjacent to it?

Back

45° (because 135° + 45° = 180°).

Tags

CCSS.7.G.B.5