Types of Angles

Front

What shape has four right angles?

Back

Square

Front

What is an angle that is less than 90 degrees called?

Back

Acute angle

Front

What is the measure of a right angle?

Back

Exactly 90 degrees

Front

What is the definition of a straight angle?

Back

Exactly 180 degrees

Front

What is an obtuse angle?

Back

Greater than 90 degrees and less than 180 degrees

Front

Which angle measures 90 degrees?

Back

Right angle

Front

What is the sum of angles in a triangle?

Back

180 degrees

Front

What type of angle is greater than 180 degrees?

Back

Reflex angle

Front

What do you call an angle that is exactly 90 degrees?

Back

Right angle

Front

What is the difference between acute and obtuse angles?

Back

Acute angles are less than 90 degrees; obtuse angles are greater than 90 degrees.