Similar to top half of p. 128 - Copy that OR Copy the gold boxes and the angle relationships below.
Definition of parallel lines – two lines are parallel if and only if they lie in the same plane and do not intersect |
Definition Of skew lines – two lines are skew if and only if the lines do not intersect AND are not in the same plane. |
Definition of transversal – A line that intersects two or more lines in a plane at different points. |
MEMORIZE THESE NAMES AND RELATIONSHIPS!!
Note that the two lines do not look parallel. If they are not parallel, then angles 1 to 4 have no special relationship with angles 5 to 8. HOWEVER, if these lines are parallel then much can be told about all the angles.