document.write( "Question 205114: The following facts are true about triangle ABC:\r
\n" );
document.write( "\n" );
document.write( "[measure_angle_B=120 degrees, AC=x(sqroot3), BC=x\r
\n" );
document.write( "\n" );
document.write( "How many choices are there for the measure of angle A?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #154839 by stanbon(75887) ![]() You can put this solution on YOUR website! The following facts are true about triangle ABC: \n" ); document.write( "[measure_angle_B=120 degrees, \n" ); document.write( "AC=x(sqroot3) (this is side \"b\", \n" ); document.write( "BC=x (this is side a) \n" ); document.write( "How many choices are there for the measure of angle A? \n" ); document.write( "---- \n" ); document.write( "Using the Law of Sines you get: \n" ); document.write( "sin(A)/a = sin(B)/b \n" ); document.write( "------------------- \n" ); document.write( "sin(A)/x = sin(120)/x(sqrt(3)) \n" ); document.write( "--- \n" ); document.write( "sin(A) = [sqrt(3)/2]/(sqrt(3)) \n" ); document.write( "sin(A) = (1/2) \n" ); document.write( "--- \n" ); document.write( "So the measure of angle A could be 30 deg or it could be 150 deg \n" ); document.write( "===================================================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |