What is the measure of Angle R M N?

Triangle R M N. Side N M extends to form exterior angle to M with angle 117 degrees.
27 degrees
63 degrees
117 degrees
163 degrees

  63 degrees

Step-by-step explanation:

The interior angle at M is the supplement of the exterior angle at M.

 ∠RMN = 180° -117° = 63°

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true