Angle Notation and Types of Angles

Right, acute, or obtuse?

• Acute

• Right

• Obtuse

Which type of angle is pictured?

• Acute

• Right

• Obtuse

• Straight

Define Obtuse Angle

• Less than 90

• Exactly 90

• Greater than 90 and less than 180

• Exactly 180

Define Acute Angle

• Less than 90

• Exactly 90

• Greater than 90 and less than 180

• Exactly 180

Define Straight Angle

• Less than 90

• Exactly 90

• Greater than 90 and less than 180

• Exactly 180

Right, acute, or obtuse?

• Right

• Acute

• Obtuse

Find the measure of the missing angle.

• 45 degrees

• 135 degrees

• 90 degrees

• 50 degrees

Find the measure of the missing angle.

• 154 degrees

• 26 degrees

• 180 degrees

• 64 degrees

This angle is written as......

•  ∠ABC

•  ∠ACB

• ∠BCA

• ∠CAB

If I wanted to name the red angle, which of these options would be acceptable?

• ∠HLG

• ∠KLH

• ∠LHG

• ∠HGL