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Section 1.5 notes 6th hour.notebook
1
September 19, 2014
SECTION 1.5Angle Relationships
Adjacent Angles: two angles that lie in the same plane, have a common vertex, and a common side, but no common interior points
Vertical Angles:two nonadjacent angles formed by two intersection lines
Section 1.5 notes 6th hour.notebook
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September 19, 2014
Linear Pair:
pair of adjacent angles whose noncommon sides are opposite rays
Complementary Angles:
two angles whose measures have a sum of 90 degrees
Supplementary Angle:
two angles whose measures have a sum of 180 degrees
Perpendicular:
lines that intersect at right angles (intersect and form 90 degree angles)
Section 1.5 notes 6th hour.notebook
3
September 19, 2014
Find the measures of two complementary angles if the difference in the measures of the two angles is 12.
Find x and y so that BE and AD are perpendicular.
12y 10
6x3x
B
C
E
A
DF
Section 1.5 notes 6th hour.notebook
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September 19, 2014
Interpret FiguresL
Q
PM
NO
a) are <LPM and <MPO adjacent angles?
b) are <OPQ and <LPM complementary angles?
c) are <LPO and <QPO a linear pair?
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