Classifying Basic Angles

Name this triangle for its angles and sides.

• obtuse

• right

• isosceles

• equilateral

Name this triangle for its angles and sides.

• obtuse

• acute

• isosceles

• scalene

Name this triangle for its angles and sides.

• acute

• obtuse

• equilateral

• isosceles

This slice of pizza at the bottom makes what kind of angle?

• right

• acute

• obtuse

• straight

This angle is an example of what type of angle?

• right

• acute

• obtuse

• straight

Find the missing angle.  Find x.

• 20^o

• 70^o

• 160^o

• 180^o

An angle that is exactly 90 degrees.

• right

• acute

• obtuse

• straight

An angle that is exactly 180^o.

• right

• acute

• obtuse

• straight

An angle that is less than 90^o.

• right

• acute

• obtuse

• straight

An angle that is more than 90^o.

• right

• acute

• obtuse

• straight