Answer:
149 degrees.
Explanation:
The angle made by an arc at center is equal to the measure of arc. In the given figure the circle with center D .E,F,G ,H are points on the circle arc EFG is making an angle of 83 +66= 149 degrees.
Measure of EFG = m< GDE = 149 degrees.
The measure of segment EFG = 149 degrees.