Answer:
x = 25°
Explanation:
The secant- secant angle DGB is half the difference of the intercepted arcs, that is
( BD - FE) = 55
(135 - x) = 55 ( multiply both sides by 2 )
135 - x = 110 ( subtract 135 from both sides )
- x = -25 ( multiply both sides by - 1 )
x = 25°