Final answer:
The measure of angle GEA cannot be determined without additional context or a diagram. Typically, geometric principles or theorems would be applied to find this angle measure in a given scenario.
Step-by-step explanation:
The question 'What is m∠GEA?' is related to finding the measure of angle GEA in a given geometric context. Without additional information or a diagram, it is not possible to provide a specific answer. Typically, to find the measure of an angle, one might apply knowledge of geometric principles such as the sum of angles in a triangle, properties of parallel lines and transversals, or circle theorems, to name a few possibilities.
From the unrelated references provided, it appears this question could be part of a geometrical optics exercise, such as finding the angle of incidence or reflection in a mirror setup, or it could be part of vector analysis in physics. Nevertheless, these references do not give us enough context to determine the measure of m∠GEA.
To solve for m∠GEA, additional details about the relationship between point G, E, and A would be required, such as whether they form a triangle or are points on intersecting lines. In any case, the student would typically use mathematical relationships and theorems relevant to the scenario to find the required angle measure.