document.write( "Question 552699: why are ad and bc perpendicular to ab and dc? \n" ); document.write( "
Algebra.Com's Answer #360472 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! why are ad and bc perpendicular to ab and dc? \n" ); document.write( "------- \n" ); document.write( "Maybe they're not. \n" ); document.write( " |