Parallel Lines Theorems - Chatt

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10 Οκτ 2013 (πριν από 3 χρόνια και 8 μήνες)

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MPM 1D

The Parallel Lines Theorem (PLT
-
Z, PLT
-
F and PLT C)

Part A: Alternate Angles



AB and DC are parallel line segments



EF

is called a “transversal”.











Refer to page 363 of your textbook.

On the left diagram, identify

two angles
that are
“alternate angles”



draw a Z pattern on the diagram
.



Identify the

other two angles that are “alternate angles”

(
Did you identify a

Z
-
pattern in the picture

that is
backwards?
)

What is true about alternate angles?


Part B: Corresponding Angles




The shading on this diagram
on page 363
shows what is
called an “F
-
pattern
”, for obvious reasons!



There are 3 more F
-
patterns in the
diagram
, some
upside down and some backwards. Shade them in the
diagrams below.









What is true about corresponding angles?


Part C:
Co
-
Interior Angles



Use

your text
shows what is calle
d a “C
-
pattern”.



Identify both C patterns

What is true about corresponding angles?