Angle Pairs!

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 complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 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 and angle B are supplementary and angle A measures 120 degrees, what is the measure of angle B?

Back

Angle B measures 60 degrees.

Tags

CCSS.7.G.B.5

Front

If angle C and angle D are complementary and angle C measures 30 degrees, what is the measure of angle D?

Back

Angle D measures 60 degrees.

Tags

CCSS.7.G.B.5

Front

What is the sum of the measures of two supplementary angles?

Back

The sum is always 180 degrees.

Tags

CCSS.7.G.B.5

Front

What is the sum of the measures of two complementary angles?

Back

The sum is always 90 degrees.

Tags

CCSS.7.G.B.5

Front

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

Back

The measures of vertical angles are equal.

Tags

CCSS.7.G.B.5

Front

Solve for x: 2x + 30 = 180

Back

x = 75.

Tags

CCSS.8.G.A.5

Front

Solve for x: 3x + 15 = 90

Back

x = 25.

Tags

CCSS.7.EE.B.4A