Answer:
CD = 36°
Explanation:
the measure of secant angle BFE is half the difference of the measures of the intercepted arcs , that is
(BE - CD) = ∠ BFE
(128 - x) = 46 ( multiply both sides by 2 to clear the fraction )
128 - x = 92 ( subtract 128 from both sides )
- x = - 36 ( multiply both sides by - 1 )
x = CD = 36°