Basic Geometry Terms

Front

What is an angle that measures exactly 90 degrees called?

Back

Right angle

Front

Which of the following angles is less than 90 degrees? Acute angle, Right angle, Obtuse angle, Reflex angle

Back

Acute angle

Front

An angle that measures more than 90 degrees but less than 180 degrees is called what?

Back

Obtuse angle

Front

What is the measure of a straight angle?

Back

180 degrees

Front

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

Back

Complementary angles

Front

What type of angle measures exactly 180 degrees?

Back

Straight angle

Front

What is the term for two angles whose measures add up to 180 degrees?

Back

Supplementary angles

Front

If two angles are equal and together form a straight line, each angle is called what?

Back

Right angle

Front

What is the term for an angle that is less than 360 degrees but more than 180 degrees?

Back

Reflex angle

Front

Which of the following angles can be classified as an obtuse angle? An angle measuring 45 degrees, An angle measuring 90 degrees, An angle measuring 135 degrees, An angle measuring 180 degrees

Back

An angle measuring 135 degrees