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Parallel Lines
Chapter 3
Take notes from this Powerpoint!!!
Vocabulary
Parallel Lines Coplanar lines that do not intersect.
a||b
b
a
Just like parallel lines,parallel Planes are
two planes that do notintersect.
Vocabulary Skew Lines
Two or more lines that do not intersect but are not coplanar. Transversal
A line that intersects two or more lines in a plane at different points.
All lines intersect at one point. No line is a transversal.
The red line intersects theother lines at 2 different points.
Skew Lines - don't intersectnot coplanar
Use the figure to name each of the following.
Answer: plane XYZ Name all planes that are parallel to plane RST.a.
b. Name all segments that intersect YZ.
Answer:
TZ, SY, XY, and WZ
c.
d.
Name all segments that are parallel to RX.
Name all segments that are skew to TZ.Answer:
TZ, SY, and QW
Answer:
RS XY, QR and XW
S
Y
Z
W
Q
R
X
T
Vocabulary Exterior Angles
87
65
43
21
∠1, ∠2, ∠7 and ∠8
They are outside the
intersections of the
transversal
Vocabulary Interior Angles
87
65
43
21
∠3, ∠4, ∠5 and ∠6
They are inside the
intersections of the
transversal
Vocabulary Consecutive Interior Angles
87
65
43
21
∠3 and ∠5∠4 and ∠6
Vocabulary Alternate Interior Angles
87
65
43
21
∠3 and ∠6∠4 and ∠5
Vocabulary Alternate Exterior Angles
87
65
43
21
∠1 and ∠8∠2 and ∠7
Vocabulary Corresponding Angles
87
65
43
21
∠1 and ∠5∠2 and ∠6∠3 and ∠7∠4 and ∠8
Identify the following angle pairs.
161514
13
12
1110
9
8
76
5
4
32
1
∠1 and ∠5
∠2 and ∠8
∠1 and ∠15
∠10 and ∠6
∠16 and ∠9
Log onto the Web
Go to the Geometry Resources Page Take the Quiz 3-1 with a partner Report your results to Mr. Schommer
by emailing them to [email protected]
