Angles

Front

What is an 'Acute' Angle?

Back

An angle that measures less than 90 degrees.

Front

What is an 'Obtuse' Angle?

Back

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

Front

What is 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 a 'Full' Angle?

Back

An angle that measures exactly 360 degrees.

Front

How do you measure an angle?

Back

Using a protractor.

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 a complementary angle?

Back

Two angles that add up to 90 degrees.

Front

What is a supplementary angle?

Back

Two angles that add up to 180 degrees.

Front

If one angle measures 30 degrees, what is its complementary angle?

Back

60 degrees.