Angles

Angles

Angles are measured in degrees

• An angle is formed by two rays that share a common endpoint

• Vertex is the point where the two rays meet.

• Right Angles equal  $90\degree$  

• Acute angles measure less than  $90\degree$  

• Obtuse angles measure more than  $90\degree$  

• Straight angles equal  $180\degree$  

Naming Angles

Multiple Choice

Which of the following angles is the Acute angle?

Multiple Choice

Which of the following angles is the Straight angle?

Multiple Choice

Which of the following angles is the Obtuse angle?

Multiple Choice

Which of the following angles is the Right angle?

Poll

I can identify acute, obtuse, and right angles.

• Absolutely

• Maybe with my notes

• I'm still confused

• I don't understand the question.

Vertical Angles

• Vertical angles are opposite angels formed by the intersection of two lines.

• Congruent angles have the same measure or value.

• Vertical angles are congruent.

Multiple Select

Look at the picture of the angles. Select all statements that are true. (Click on the picture to enlarge).

Fill in the Blanks

What is the value of the missing angle? (Only put a number)

Fill in the Blanks

The value of angle b is

degrees. (only input the number)

Fill in the Blanks

The value of angle b is

degrees. (only input the number)

Poll

I can find the value of a vertical angle.

• I got this. It's easy

• I can do this with my notes.

• I still don't understand.

• Was I supposed to take notes on this?

Adjacent Angles must meet all three criteria.

• Share a common vertex

• Share a common side

• They do NOT overlap

Multiple Select

Select all of the pictures that represent adjacent angles.

Multiple Select

Select all of the pictures that represent adjacent angles.

Poll

I can see how angles are adjacent.

• This make sense, I understand.

• I'm still a little confused

• What does adjacent mean?

Angles

• Acute angles

• Right angles

• Obtuse angles

• Straight Angles

• Vertical angles

• Adjacent angles