document.write( "Question 1116028: In the ΔABC, AB = 16 in, BC = 9 in, AC = 10 in. AD ⊥ to the extended BC. Find CD. \n" ); document.write( "
Algebra.Com's Answer #730845 by greenestamps(13215) You can put this solution on YOUR website! \n" ); document.write( "(1) Draw the figure; make sure angle C is obtuse.... \n" ); document.write( "(2) There are two right triangles -- ADC and ADB. \n" ); document.write( "(3) Let CD=x and AD=y; use the Pythagorean Theorem to form two equations in x and y. \n" ); document.write( "(4) Solve the pair of equations. The x^2 and y^2 terms cancel, leaving you with a linear equation in x which is easily solved to find the answer. \n" ); document.write( " |