Equations and Angles Test

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

What are complementary angles?

Back

Two angles that add up to 90°.

Front

What are supplementary angles?

Back

Two angles that add up to 180°.

Front

If two angles are complementary and one angle is 30°, what is the other angle?

Back

60°.

Front

If two angles are supplementary and one angle is 120°, what is the other angle?

Back

60°.

Front

What is the value of x if the angles are supplementary and one angle is 80°?

Back

100°.

Front

What is the value of x if the angles are complementary and one angle is 45°?

Back

45°.

Front

Identify the type of angles: 70° and 20°. Are they complementary or supplementary?

Back

Complementary.

Front

What is the sum of the angles in a triangle?

Back

180°.

Front

What is the value of r if the equation is r + 20 = 63?

Back

43.