document.write( "Question 180205: 3. If three lines all meet in a single point, how many pairs of vertical angles are formed ? \n" ); document.write( "
Algebra.Com's Answer #135060 by Fombitz(32388)\"\" \"About 
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Assuming three unique lines A, B, C,
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\n" ); document.write( "for each pair you get 2 set of vertical angles.
\n" ); document.write( "For 3 line pairs (AB, AC, BC), you would get 3 times that many, 6 pair of vertical angles.
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