Classifying Angles

Front

What type of angle has a measurement of less than 90°?

Back

Acute angle

Front

What type of angle has a measurement of exactly 90°?

Back

Right angle

Front

What type of angle has a measurement greater than 90° but less than 180°?

Back

Obtuse angle

Front

What do you call the point where two rays meet to form an angle?

Back

Vertex

Front

What are the two lines that form an angle called?

Back

Rays

Front

If an angle measures 180°, what type of angle is it?

Back

Straight angle

Front

What is the term for an angle that measures more than 180°?

Back

Reflex angle

Front

How many degrees are in a full circle?

Back

360 degrees

Front

What is the name of an angle that measures exactly 0°?

Back

Zero angle

Front

What is the relationship between acute angles and right angles?

Back

Acute angles are less than right angles.