Angle Sum

Front

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

Back

180 degrees.

Front

What do the angles in an equilateral triangle measure?

Back

60 degrees each.

Front

Define a right angle.

Back

An angle that measures exactly 90 degrees.

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What is the measure of a missing angle if two angles measure 50 degrees and 80 degrees?

Back

50 degrees.

Front

What is the relationship between complementary angles?

Back

The sum of complementary angles is 90 degrees.

Front

What is the relationship between supplementary angles?

Back

The sum of supplementary angles is 180 degrees.

Front

How do you find the measure of an exterior angle of a triangle?

Back

The exterior angle is equal to the sum of the two opposite interior angles.

Front

What is the measure of an angle that is greater than 90 degrees but less than 180 degrees?

Back

Obtuse angle.

Front

What is the measure of an angle that is less than 90 degrees?

Back

Acute angle.