Answer:
DF and CG
Explanation:
Two or more segments are said to be parallel is the angle between them is
. While two segments are said to be perpendicular when the angle between them is
.
The given figure is a parallelogram. A parallelogram is a quadrilateral with a pair of parallel opposite sides.
In the given question if ∠ADH ≅ ∠ECK , then the parallel segment would be DF and CG.