Question

which triangle congruence theorem can be used to show jkn lkm?

I know the answer is sas but why would it be sas, like explain

Answer 1

@maurice19

Answer 2

Why would it be SAS? Because these triangles are connected at the center vertex where they share the angle "K". Because they share the angle "K" you know that Angle is the second part of the theorem. Also sense the "K" is directly between two sides of the triangle you know the theorem cant be ASA, SSS or etc. Therefore it leads you directly to SAS.