Geometry Review

Front

What are supplementary angles?

Back

Supplementary angles are two angles that add up to 180 degrees.

Front

What are complementary angles?

Back

Complementary angles are two angles that add up to 90 degrees.

Front

What are vertical angles?

Back

Vertical angles are angles that are opposite of each other when two lines intersect.

Front

If two angles are supplementary and one angle measures 83°, what is the measure of the other angle?

Back

97°

Front

What is the measure of the missing angle if one angle is 108°?

Back

72° (since 180° - 108° = 72°).

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

What is the definition of an angle?

Back

An angle is formed by two rays that share a common endpoint, called the vertex.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.