a angle of coincidence is mainly the angle in which the coincidence is happening but it can also be where sometime a person goes and the coincedence comes from one point or place that they never expected it to come from.
The angle of incidence is the angle between the incident ray of radiation (usually light) and the normal (perpendicular) at the point of incidence. Similarly, the angle of reflection is the angle...
The angle of incidence is the angle at which an object approaches another object. Angle of reflection is the angle at which the first object leaves after interacting with the other object.