The video tutorial introduces the concept of angles, explaining that they are formed by two rays with a common point called the vertex. It details how to name angles using letters and symbols, emphasizing that the vertex is always the middle letter. The tutorial provides examples to illustrate the identification of rays and vertices in angles and encourages students to practice solving angle problems on their own.

What is formed by two rays that share a common point?

• A line

• A circle

• An angle

• A triangle

What is the common point where two rays meet called?

• Edge

• Vertex

• Apex

• Base

Which of the following is NOT a component of an angle?

• Arm

• Ray

• Base

• Vertex

What is the term for the two lines that form an angle?

• Vertices

• Bases

• Arms

• Edges

Which of the following is NOT a way to name an angle?

• Using two letters

• Using three letters with the vertex in the middle

• Using any three letters in any order

• Using only the vertex letter

In the angle name 'angle PQR', which letter represents the vertex?

• P

• Q

• None of the above

• R

What is the correct way to read the angle formed by rays QP and QR?

• angle QRP

• angle PQR

• angle QPR

• angle RPQ

In the angle name 'angle RQP', which letter is the vertex?

• R

• Q

• P

• None of the above

If an angle is named 'angle BCD', which of the following is also a correct name for it?

• angle BDC

• angle DCB

• angle CDB

• angle DBC

In the example with rays CB and CD, what is the vertex of the angle?

• B

• C

• D

• None of the above