Answer:
33°
Step-by-step explanation:
Because the two triangles are similar the angles that correspond in each triangle are equal so:
<A = <M
<B = <O
<C = <P
So we can use the fact that the angles in a triangle add up to 180° and calculate the third angle that is missing:
<B = 180 - 45 - 102
<B = 33°