2.2 Defns & Biconditionals

2.2 Defns & Biconditionals - 2.2 Definitions &...

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2.2 Definitions & Biconditional Statements p.79
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Perpendicular Lines Perpendicular Lines 2 lines that intersect to form a right angle. l m l m
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Line perpendicular to a plane Line perpendicular to a plane A line that intersects a plane in a point & is perpendicular to every line in the plane that intersects the line. Q l
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Definitions can be written in “if- then” form. The converse of a definition is always true. This means the defn. is true forwards & backwards.
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Ex : True or False? – Why? True Def. of collinear b.) AC DB True Def. of lines c.) <AEB is adjacent to <CED False don’t share a common side D E B A C
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Easy to spot, because it has the words “only if” in the middle of the statement. Ex : It is Saturday, only if I am working at the mall. hypothesis? conclusion? Can rewrite in “if-then” form. Ex
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This note was uploaded on 02/12/2011 for the course MTG 3212 taught by Professor Jackson during the Spring '11 term at University of Florida.

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2.2 Defns &amp;amp; Biconditionals - 2.2 Definitions &amp;...

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