Section 3'7 Perpendicular Lines

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Section 3.7 Perpendicular Lines
Example
How many perpendicular lines can you draw to line
m that intersect point R?
R
m
Property If you are given a line and a point
there is only 1 line you can draw through the
given point perpendicular to the line.
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Section 3.7 Perpendicular Lines
Markings and notation In a diagram if there is
a small box in the corner of an angle it
symbolizes a right angle and therefore
perpendicular lines The l symbol means
perpendicular
Example
l
m
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Section 3.7 Perpendicular Lines
Example
Property If two lines are perpendicular then 4
right angles are formed.
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Section 3.7 Perpendicular Lines
Objective Identify perpendicular lines and use
their properties to solve problems with angles.
Definition Perpendicular lines - lines that
intersect to form a right angle (90O)