No they are not proportional
In three-dimensional geometry, skew lines are two lines that do not intersect and are not parallel. A simple example of a pair of skew lines is the pair of lines through opposite edges of a regular tetrahedron. Two lines that both lie in the same plane must either cross each other or be parallel, so skew lines can exist only in three or more dimensions. Two lines are skew if and only if they are not coplanar. Hope this helps!! :)
Answer:
Angle ABC is bisected by BD
BC =Half AC
2 mangle DBC =mangle ABC
The converse would be "If it is my birthday, then it is snowing."
