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:
whichever way the opening of the sign points go the opposite. if it is less than or equal to, closed circle
Step-by-step explanation:
>
the line would point this way -->
sorry if this doesnt help
we know that
The internal angles of the triangle 
are
Angles
The internal angles of the triangle 
are
Angles
therefore
the answer is
Therefore, the required vertices after rotation are W'(5,3), X'(3,1),Y'(5,-1) and Z'(7,1).
H=(√3)*a/2 = 41.2
So, a=2*41.2/√3=47.6
