Geo­Notes 1­3.notebook
September 12, 2013
Fill in the Blank
A. Point
B. Line
C. Plane
1. Through any 2 pts there is exactly 1
____________.
2. If 2 lines intersect, they intersect in
exactly 1 ______.
3. If 2 planes intersect, they
intersect in a __________.
4. Through any 3 noncollinear points
there is exactly 1 ____________.
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Geo­Notes 1­3.notebook
September 12, 2013
Segment
the part of a line consisting of two endpoints and all points between them
A
B
Ray
the part of a line consisting of one endpoint and all the points of the line on one side of the endpoint
K
J
A
B
C
2
Geo­Notes 1­3.notebook
September 12, 2013
Opposite Rays
-two collinear rays with the same endpoint
-opposite rays always form a line
A
B
C
D
3
Geo­Notes 1­3.notebook
September 12, 2013
T
U
V
1. Give another name for UW.
W
X
2. Name a pair of opposite rays with W as the endpoint.
3. Give two names for the line.
True or False
4. UW = WU
True or False
5. UW = WU
4
Geo­Notes 1­3.notebook
September 12, 2013
Parallel Lines
coplanar lines that do not intersect
Skew Lines
- do NOT lie in the same plane
-are not parallel, are not intersecting
5
Geo­Notes 1­3.notebook
September 12, 2013
Parallel Planes
­­planes that do not intersect
6
Geo­Notes 1­3.notebook
September 12, 2013
i , p , or s
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Geo­Notes 1­3.notebook
September 12, 2013
HW # 6
p. 20­21 # 1 ­ 30, 32, 33
** Graph paper
** Quiz Next Thursday 9/19
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