1-1 Points, Lines, Planes

Geometry




1-1 Points, Lines, & Planes

An exact location in space.




Name/Notation:
Point A

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Point

A collection of points that continues infinitely in two directions.


Name/Notation (Choose 2 points):

There are a variety of names.

Line

A flat surface that continues infinitely in all directions.


Name/Notation (Choose 3 points or the single letter in the corner):

There are a variety of names.

Plane

Multiple Choice

What is a possible name for this plane?

• Plane CAB

• Plane XYZ

• PLANE CAT

• PLANE POP

Multiple Choice

Name the PURPLE line. (the top line)

• Line RS

• Line QP

• PLANE PQS

• Line PS

Consists of two endpoints and all of the points between them.

Name/Notation (segments have endpoints):

Segment AB or Segment BA

Line Segment

Has one endpoint and continues infinitely in one direction.

Name/Notation (a ray has one endpoint and continues in one direction):

Ray RN

Ray

Points that lie on the same line.

Name/Notation (list points that are collinear):

Points A, P, Q, and B are collinear

Collinear Points

Points that lie on the same plane.

Name/Notation (list points that are coplanar):

Points A, B, C, and D are coplanar

Coplanar Points

Multiple Choice

Name a line segment (you only need two points, not three)

• Segment XZ

• Segment RQP

• Segment XR

• Segment RP

Multiple Choice

Point A is collinear with points P, Q, and R

• TRUE

• FALSE

Two lines that intersect at one distinct point.

Name/Notation:

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Intersecting Lines

Two planes intersect to make a line

Name/Notation:

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Intersecting Planes