document.write( "Question 1096074: Prove one angle of triangle equs to other two that is right angle \n" ); document.write( "
Algebra.Com's Answer #710544 by rothauserc(4718) You can put this solution on YOUR website! A = B + C \n" ); document.write( ": \n" ); document.write( "The sum of the angles of a triangle is 180 degrees \n" ); document.write( ": \n" ); document.write( "A + B + C = 180 \n" ); document.write( ": \n" ); document.write( "(B+ C) + B + C = 180 \n" ); document.write( ": \n" ); document.write( "2B + 2C = 180 \n" ); document.write( ": \n" ); document.write( "B + C = 90 \n" ); document.write( ": \n" ); document.write( "A = 90 degrees, a right angle \n" ); document.write( " |