2.2 Defns &amp; Biconditionals

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

This preview shows pages 1–7. Sign up to view the full content.

2.2 Definitions & Biconditional Statements p.79

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Perpendicular Lines Perpendicular Lines 2 lines that intersect to form a right angle. l m l m
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

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Definitions can be written in “if- then” form. The converse of a definition is always true. This means the defn. is true forwards & backwards.
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

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
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
This is the end of the preview. Sign up to access the rest of the document.

## 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.

### Page1 / 12

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

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online