document.write( "Question 710918: Given a triangle with sides measuring 18 inches, 21 inches, and 14 inches find the measure of the angle with the greatest measure. \n" ); document.write( "
Algebra.Com's Answer #437240 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Given a triangle with sides measuring 18 inches, 21 inches, and 14 inches find the measure of the angle with the greatest measure. \n" ); document.write( "---- \n" ); document.write( "Use the Law of Cosines. \n" ); document.write( "Largest angle is the angle opposite the largest side. \n" ); document.write( "------- \n" ); document.write( "cos(A) = [18^2+14^2 - 21^2]/[2*18*14] = 0.1567 \n" ); document.write( "--- \n" ); document.write( "A = cos^-1(0.1567) = 80.98 degrees) \n" ); document.write( "================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |