document.write( "Question 812660: Suppose a triangle has three sides which measure 10, 13, and 17. Find the measure of the smallest angle, to the nearest degree. \n" ); document.write( "
Algebra.Com's Answer #489244 by stanbon(75887) ![]() You can put this solution on YOUR website! Suppose a triangle has three sides which measure 10, 13, and 17. Find the measure of the smallest angle, to the nearest degree. \n" ); document.write( "---------- \n" ); document.write( "The smallest angle is opposite the shortest side. \n" ); document.write( "Let that side be \"a\". \n" ); document.write( "Use the Law of Cosines to get: \n" ); document.write( "---------- \n" ); document.write( "cos(A) = (13^2+17^2-10^2)/(2*13*17) = 0.81 \n" ); document.write( "---- \n" ); document.write( "angle A = cos^-1(0.81) = 35.8 degrees \n" ); document.write( "================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================= \n" ); document.write( " |