12.11/12.12 Warm-Up

Front

What is a flat surface in geometry?

Back

A plane is a flat surface that extends infinitely in all directions.

Front

What is the name of this plane?

Back

Plane M is an example of a named plane in geometry.

Front

What is a ray in geometry?

Back

A ray is a part of a line that starts at a point and extends infinitely in one direction.

Front

What does the term 'vertex' mean?

Back

A vertex is a common endpoint of two or more rays or line segments.

Front

What is a line in geometry?

Back

A line is a straight path that extends infinitely in both directions.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

Front

What is the difference between a ray and a line segment?

Back

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

Front

What is an angle?

Back

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

Front

How do you identify a plane in a diagram?

Back

A plane is often represented by a four-sided figure or a parallelogram in diagrams.

Front

What is the significance of naming planes?

Back

Naming planes helps in identifying and referencing them in geometric discussions.