1.2 Points, Lines and Planes1.2 Points, Lines and Planes

Review

1.2 Points, Lines and Planes1.2 Points, Lines and PlanesPoint: Represents a ______ – has __ size

Named by a _______ letter: Examples:

1.2 Points, Lines and Planes1.2 Points, Lines and PlanesLine: Made up of ______ – has no ________

or ________; It has_______ arrows. Named by _______ letter or any

________ on the line (order doesn’t matter)

Possible Names: ____

____

____MN

q

1.2 Points, Lines and Planes1.2 Points, Lines and Planes

Collinear: ______ on the _______ line

A

B

C

Non-collinear?

Points ___ on the ____ line

D

_______ are collinear

________ are non-collinear

1.2 Points, Lines and Planes1.2 Points, Lines and PlanesPlane: A ___________ made up of points

Has extended indefinitely ________

Named by 3 __________ points or a _______ _______ letter

4 Possible names: _______________

C.A . B.W

1.2 Points, Lines and Planes1.2 Points, Lines and PlanesCoplanar: Figures that ____________ plane

A

B

C W

D

E

F

Non-Coplanar: Figures that ____ lie in the same plane

w

1.2 Points, Lines and Planes1.2 Points, Lines and Planes

Segment: A part of a line; It has _______ endpoints and ________ arrows.

Named by its _________ with a ____ over the top

2 Possible names: _____ ______

AB

1.2 Points, Lines and Planes1.2 Points, Lines and PlanesRay: It is ______ and it has one _______

extends __________ in _____ direction

Named by its ________ and ______ point on the ray. Uses a _______ over the top

A

B Possible name: ______

1.2 Points, Lines and Planes1.2 Points, Lines and Planes Name a ray

Name a line

Name a segment

Name the plane

V

X

Z

QC

l

1.1 Points, Lines and Planes1.1 Points, Lines and Planes

Space: A ______, ____________ set of all points.

Space can contain ____ and _____

(Use dotted lines to help draw 3-dimensional, space objects)

1.2 Points, Lines and Planes1.2 Points, Lines and Planes

A

B

C

D

What can you NOT name this plane???How many planes are in this diagram?

1.2 Points, Lines and Planes1.2 Points, Lines and Planes

Undefined Terms: ______, ____ and _____: because they are only _________ using _________ and _____________ .