Test # 3 Chapter 8 Angles

Define Obtuse

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

Define Acute

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

Define Right Angle

• 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

Right, acute, or obtuse?

• Right
• Acute
• Obtuse

Find the missing angle.

• 60
• 70
• 50
• 140

Identify all the ACUTE angles... (Find 3)

• 37^o

• 135^o

• 23^o

• 4^o

• 175^o

Identify all the OBTUSE angles... (Find 2)

• 87^o

• 245^o

• 303^o

• 164^o

• 95^o

What is this a picture of?

• Acute angle

• Right angle

• Perpendicular lines

• Obtuse angle