Types of Angles

Front

What is an angle that measures exactly 90 degrees?

Back

Right angle

Front

What is an angle that measures exactly 180 degrees?

Back

Straight angle

Front

What is an angle that measures greater than 90 degrees but less than 180 degrees?

Back

Obtuse angle

Front

What is an angle that measures less than 90 degrees?

Back

Acute angle

Front

What do you call an angle that measures exactly 0 degrees?

Back

Zero angle

Front

What is the sum of angles in a triangle?

Back

180 degrees

Front

What type of angle is formed when two lines intersect at a right angle?

Back

Right angle

Front

If an angle measures 45 degrees, what type of angle is it?

Back

Acute angle

Front

If an angle measures 120 degrees, what type of angle is it?

Back

Obtuse angle

Front

What is the term for angles that add up to 90 degrees?

Back

Complementary angles