Angle Relationships

Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common vertex and a common side, but do not overlap.

Tags

CCSS.7.G.B.5

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Tags

CCSS.7.G.B.5

Front

What are supplementary angles?

Back

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

Tags

CCSS.7.G.B.5

Front

What are vertical angles?

Back

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

Tags

CCSS.7.G.B.5

Front

If angle A is 39 degrees, what is the measure of its complementary angle?

Back

51 degrees (90 - 39 = 51).

Tags

CCSS.7.G.B.5

Front

If angle B is 127 degrees, what is the measure of its supplementary angle?

Back

53 degrees (180 - 127 = 53).

Tags

CCSS.7.G.B.5

Front

If two angles are adjacent and one measures 40 degrees, what is the maximum measure the other angle can have?

Back

140 degrees (180 - 40 = 140).

Tags

CCSS.7.G.B.5

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal in measure.

Tags

CCSS.7.G.B.5

Front

If angle C is 10 degrees, what is the measure of its complementary angle?

Back

80 degrees (90 - 10 = 80).

Tags

CCSS.7.G.B.5

Front

If angle D is 83 degrees, what is the measure of its supplementary angle?

Back

97 degrees (180 - 83 = 97).

Tags

CCSS.7.G.B.5