Complementary/Supplementary/Vertical Angles

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are always equal.

Front

What is the supplement angle to 42°?

Back

138°

Front

What is the complement angle to 30°?

Back

60°

Front

If angle A is 70°, what is the supplement angle?

Back

110°

Front

If angle B is 20°, what is the complement angle?

Back

70°

Front

If two angles are supplementary and one angle is 90°, what is the other angle?

Back

90°

Front

If angle C is 39°, what is the supplement angle?

Back

141°

Front

If angle D is 150°, what is the complement angle?

Back

Not possible (complement cannot exceed 90°).