document.write( "Question 1174337: If the alternate angles created by 2 parallel lines and a transversal are supplementary, what are their measures? Explain. \n" ); document.write( "
Algebra.Com's Answer #799794 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! They are 90% and the transversal is perpendicular to the parallel lines. \n" ); document.write( "Alternate interior angles are equal but are also supplementary, so if each is x, x+x=180 and x=90 deg. \n" ); document.write( " \n" ); document.write( " |