Naming Angles

Name the vertex of the angle.

• S

• R

• Q

• S, R, and Q are vertices

Name the vertex of the angle.

• E

• F

• D

• E, F, and D are vertices

What is the correct definition of an angle? 

• one single ray
• two rays that meet at a single endpoint (vertex)
• two lines that never intersect
• two rays that go in opposite directions

This angle is written as......

•  ∠ABC
•  ∠ACB
• ∠BCA
• ∠CAB

What is the arrow pointing to in the angle?

• a ray

• geometry

• vertex

• line

What does this represent?

• angle ABC
• triangle ABC
• arc ABC
• line ABC

• Acute
• Right
• Obtuse

Name this angle.

• acute
• right
• obtuse
• none of the above

Which type of angle is pictured?

• Acute
• Right
• Obtuse
• Straight

What type of angle is this? 

• acute
• obtuse
• right