Answer:
△ABC ~ △MLN
Explanation:
Because the sum of all the angles in a triangle equals 180, we can find the missing angle in both triangles
△ABC
c + 90 + 51 = 180
c = 39
△MLN
+ 90 + 39 = 180
= 51
Because <C has the same angle degree as <N, <B has the same angle degree as <L, and <A has the same angle degree as <M, then △ABC must be similar to △MLN