document.write( "Question 681623: a triangle is four vertices and each of them has an external and internal angle \n" ); document.write( "
Algebra.Com's Answer #423707 by Onmyoji.S(32)![]() ![]() You can put this solution on YOUR website! what you want to prove? \n" ); document.write( "or can you put more info on what you want to prove? \n" ); document.write( " |