Answer:
D. arc AB ≅ arc CD.
Explanation:
To solve this problem, we need to use the Intersecting Chords Theorem which states "when two chords intersect each other inside a circle, the products of their segments are equal".
Applying this theorem, we have
Where
and
, also
, which means
However, if both chords are equal, then their arcs are also equal, that's the easiest way to deduct it, that is
Because an arc is defined by its chord basically, and in this case they are congruent.