1 unit 1 transformations l1 lines adv math 8
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1 Unit 1 Transformations L1 Lines ADV Math 8 August 03, 2016
Unit 1 TransformationsLesson 1 Lines
Spiderman shoots two webs thatnever touch. Give the name of two lines in the same plane that never touch. ____________________
What about two lines that form a right angle? ___________________
Chapter 1 Transformations Lesson 1: Lines
_____________________ when two lines intersect in a plane and form right angles.
__________________ when two lines in a plane do not intersect.
symbol picture example
perpendicular lines
parallel lines
symbol picture example
KEY CONCEPTS:Transversal: a _______ that intersects
______ or more ________ and _____
angles are formed.
Alternate Interior Angles: alternate sides of the ___________ INSIDE the _____________.
Alternate Exterior Angles:alternate sides of the ___________ OUTSIDE the _____________.
example:
These angles are
_________________.
These angles are
_________________.example:
example:
Corresponding Angles: angles that are in the _______ ___________ on the two _______
in relation to the ___________.
example:
1 Unit 1 Transformations L1 Lines ADV Math 8 August 03, 2016
SameSide Interior Angles:Same side of the ___________
_________ the parallel lines.
These angles are _________________.
SameSide Exterior Angles:Same side of the ___________
_________ the parallel lines.
These angles are _________________.
example:
example:
Vertical Angles:Two non _________ angles composed of two _______ and share a common ___________.
These angles are __________________.
example:
Let's put what we learned into practice!!!
Example 1: <1 and <7
Example 2: <2 and <6
Now you try...
1 Unit 1 Transformations L1 Lines ADV Math 8 August 03, 2016
Now you try...
Justify your
answers!!
No worries...
we will revisit
this
again :)
If m || n, find all the missing angle measures.
m
n
40o 23 4
5 67 8
More Practice!!! If m || n, find all the missing angle measures.
m
n
23 4
700 67 8
1
1 Unit 1 Transformations L1 Lines ADV Math 8 August 03, 2016
If m || n, find all the missing angle measures.
125o
23 4
5
1
7 8