document.write( "Question 235485: two angles of a triangle measure 15 degree and 85 degree. what is the measure for the third angle? \n" ); document.write( "
Algebra.Com's Answer #173452 by stanbon(75887) ![]() You can put this solution on YOUR website! two angles of a triangle measure 15 degree and 85 degree. what is the measure for the third angle? \n" ); document.write( "------- \n" ); document.write( "Sum of the angles of a triangle = 180 degrees \n" ); document.write( "--------------- \n" ); document.write( "Let the 3rd angle have meansure \"x\": \n" ); document.write( "--- \n" ); document.write( "Equation: \n" ); document.write( "x + 15 + 85 = 180 \n" ); document.write( "x + 100 = 180 \n" ); document.write( "x = 80 degrees. \n" ); document.write( "===================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |