Introduction to Angle and Types of Angles

Identify the type of angle shown....

• Acute

• Obtuse

• Reflex

• Right Angle

Identify the type of angle shown....

• Acute

• Obtuse

• Reflex

• Right Angle

Identify the type of angle shown....

• Acute

• Obtuse

• Reflex

• Right Angle

Identify all the ACUTE angles...

• 37^o

• 135^o

• 23^o

• 4^o

• 175^o

Define Obtuse

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

Define Straight

• Less than 90

• Exactly 90

• Greater than 90 and less than 180

• Exactly 180

Right, acute, or obtuse?

• Acute
• Right
• Obtuse

Identify all the OBTUSE angles...

• 87^o

• 245^o

• 303^o

• 164^o

• 95^o

Which angle type is pictured?

• Acute
• Right
• Obtuse
• Straight

What type of angle is shown here?

• Acute

• Obtuse

• Reflex

• Right