Complementary, Supplementary, and Vertical Angles

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 ∠A and ∠B are complementary and ∠A = 40°, what is ∠B?

Back

∠B = 50° (90° - 40° = 50°).

Tags

CCSS.7.G.B.5

Front

If ∠C and ∠D are supplementary and ∠C = 110°, what is ∠D?

Back

∠D = 70° (180° - 110° = 70°).

Tags

CCSS.7.G.B.5

Front

Find the value of x if ∠1 + ∠2 = 90° and ∠1 = 30°. What is ∠2?

Back

∠2 = 60° (90° - 30° = 60°).

Tags

CCSS.7.G.B.5

Front

What is an example of a pair of supplementary angles?

Back

An example of supplementary angles is 120° and 60°.

Tags

CCSS.7.G.B.5

Front

If ∠E and ∠F are vertical angles and ∠E = 45°, what is ∠F?

Back

∠F = 45° (vertical angles are equal).

Tags

CCSS.7.G.B.5

Front

If ∠G = 25° and ∠H is complementary to ∠G, what is ∠H?

Back

∠H = 65° (90° - 25° = 65°).

Tags

CCSS.7.G.B.5

Front

If ∠I = 75° and ∠J is supplementary to ∠I, what is ∠J?

Back

∠J = 105° (180° - 75° = 105°).

Tags

CCSS.7.G.B.5