Exploring Naming Angles

What is the symbol used to denote an angle?

• ∥

• ∠

• ∩

• ⊥

In a triangle, if you want to reference the angle at vertex B, how would you denote it?

• Angle C

• Angle B

• Angle D

• Angle A

When naming an angle in a complex figure with intersecting lines, why is it not sufficient to use just the vertex?

• Because it is too simple

• Because it can refer to multiple angles

• Because it is not a standard notation

• Because the vertex is not always clear

How do you correctly name an angle formed by points A, O, and D?

• Angle OAD

• Angle AOD

• Angle DOA

• Angle ADO

Which point must always be in the middle when naming an angle using three points?

• Any point

• The first point

• The second point

• The third point

If an angle is formed by points C, O, and A, which of the following is a correct way to name it?

• Angle OAC

• Angle AOC

• Angle OCA

• Angle COA

In a complex figure, if the angle is formed by points E, F, and B, which notation is incorrect?

• Angle EFB

• Angle FBE

• Angle BEF

• Angle EBF

What is the term for angles that are next to each other and share a common side?

• Vertical angles

• Supplementary angles

• Adjacent angles

• Complementary angles

Which of the following pairs of angles are vertical angles?

• Angles that are across from each other at an intersection

• Angles that add up to 180 degrees

• Angles that are next to each other

• Angles that add up to 90 degrees

In the figure, if angle FBA is adjacent to angle CBA, what side do they share?

• Side AD

• Side CA

• Side BC

• Side AB