Fill in the blank: A line segment has ___ endpoints.

Two

True or False: A line can be measured for its length.

False; a line cannot be measured as it extends infinitely in both directions.

What distinguishes a ray from a line segment?

A ray has one endpoint and extends infinitely in one direction, while a line segment has two endpoints and a fixed length.

Riddle: I have no length and no width, yet I mark a specific spot. What am I?

A point.

Multiple Choice: Which of the following best describes a line? A) It has a fixed length B) It has two endpoints C) It extends infinitely in both directions D) It is curved.

C) It extends infinitely in both directions.

What are the characteristics of a line segment?

A line segment is part of a line with a fixed length that can be measured, defined by its two endpoints.

A ray begins at point P and extends through point Q. It is named based on the endpoint. What is the symbol used to denote a ray?

The symbol used to denote a ray is '→'.

Fill in the blanks: A plane is a flat surface that extends infinitely in all directions and has no ___.

Thickness

What is the defining characteristic of a vertex in an angle?

The vertex is the common endpoint where the two rays meet.

True or False: An angle can only be named using a three-letter notation.

False. An angle can also be named using a one-letter notation (the vertex) or a number.

Riddle: I have no thickness, extend infinitely in all directions, and can be named by three points. What am I?

A plane.

What distinguishes the interior of an angle from its exterior?

The interior of an angle is the region between the rays, while the exterior is the region outside the arms of the angle.

Fill in the blank: The two rays that form an angle are called the ___.

Arms of the angle.

What is the mathematical definition of an angle?

An angle is a figure formed by two rays that meet at a common endpoint, called the vertex.

Multiple Choice: Which of the following correctly describes a ray? A) A straight path with two endpoints, B) A straight path with one endpoint extending infinitely, C) A flat surface extending infinitely, D) A fixed point in space.

B) A straight path with one endpoint extending infinitely.

What is the standard unit of measure for angles, and what is its symbol?

The standard unit of measure for angles is the degree, and its symbol is °.

Fill in the blank: One complete rotation measures ___ degrees.

360

True or False: The angle formed by a full rotation is greater than 360 degrees.

False. The angle formed by a full rotation is exactly 360 degrees.

If a circle is divided into 20 equal parts, what is the measure of each angle?

Each angle will measure 18 degrees, calculated as 360 degrees divided by 20.

Riddle: I am the measure of turning, divided into 360 parts, what am I?

I am a degree.

Calculate the angle between neighboring spokes if a wheel is divided into 4 equal parts.

The angle between neighboring spokes will be 90 degrees, calculated as 360 degrees divided by 4.

What is the angle between neighboring spokes if a wheel is divided into 3 equal parts?

The angle will be 120 degrees, calculated as 360 degrees divided by 3.