Name: ________________
Chapter 1: lesson 1: POINTS, LINES & PLANES
TERM
DESCRIPTION
POINT
An _____ location in space with _________
shape and size.
LINE
An object with ___________ that extends
infinitely in _____ directions.
PLANE
A ________ surface that extends infinitely
in _______ directions.
RAY
A “piece” of a _______ that _______ at a
certain point known as an _________
and extends infinitely in ______ direction.
OPPOSITE
RAYS
_____________ sharing an _________ and
continuing infinitely in _________ directions.
LINE SEGMENT A “piece” of a __________ consisting of 2
______________ and all points in ________.
COLLINEAR
NONCOLLINEAR
COPLANAR
NONCOPLANAR
Points that lie on the _________ line.
Points that _______ lie on the _________ line.
Points that lie on the __________ plane.
Points that _______ lie on the _______ plane.
Period: ____
SKETCH
HOW TO NAME IT
EXAMPLE 1
a) Name three points that determine plane J.
X
J
U
V
K
b) Name the intersection of planes J and K.
Y
c) Name a set of collinear points, and a set
of non-collinear points.
Z
W
Collinear Points:
Non-Collinear Points:
d) Name a pair of opposite rays
EXAMPLE 2
a) Are points S, O, and M coplanar?
O
N
Why or why not?
M
L
S
P
b) How many “planes” are shown?
R
T
Q
c) Name the intersection of planes
LON and PQM:
d) Name the intersection of plane MQR and ON.
e) Do S and M determine a line? Why or why not?
f) How many lines are there through points N and Q?