Respuesta :

Hello from MrBillDoesMath!

Answer:   A


Discussion:

Angle LMO = 55 degrees since triangle  LMO is isosceles. Since a triangle has 180 degrees, angle LOM =  180 - (55 + 55) = 70 degrees. Therefore angle LNO =  180 - 55 - (70 + 28) =  27 degrees.

It this is not clear, please place the numbers described above into the diagram.

Regards, MrB

I think the answer is B. I know for sure it is not A or D.