Please help, 25 points. Will mark brainliest if correct :)

Answer: The answer to this question is measure of angle DGE = 1/2 (measure of arc DGE - measure of arc DE).
Step-by-step explanation:
The formula for an angle outside of the arc can be written as measure of angle x is equal to the larger arc starting from the ends of the segments forming x subtracted to the smaller arc starting from the ends of the segments forming x divided by 2.