Angles Flashcard

Front

What are complementary angles?

Back

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

Front

What are supplementary angles?

Back

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

Front

If angle A is 30 degrees, what is the measure of its complementary angle?

Back

60 degrees.

Front

If angle A is 120 degrees, what is the measure of its supplementary angle?

Back

60 degrees.

Front

What is the sum of angles in a triangle?

Back

The sum of angles in a triangle is always 180 degrees.

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Front

What is the measure of a straight angle?

Back

A straight angle measures 180 degrees.

Front

If two angles are equal and add up to 90 degrees, what are they called?

Back

They are called complementary angles.

Front

If two angles are equal and add up to 180 degrees, what are they called?

Back

They are called supplementary angles.

Front

What is the measure of an angle that is 45 degrees less than a right angle?

Back

45 degrees.