Question

If y = 9 and x = 12, what additional information is necessary to show that DUM is ongruent to MAP using the SAS postulate?

Answer 1

is there a formula and or picture with it @Johnica

Answer 2

http://media.education2020.com/evresources/2091970_a9755412-279d-45ff-9bda-6793f4363b90.png

Answer 3

Well, the values of x and y tell you that |MU| = |PA| and that |DU| = |MA|. As SAS implies, you now need an equivalency between the included angles (the angle in between the sides that we know are equal). So that means I need m∠DUM = m∠MAP. Does it make sense why?