Transversal
You pass another line through both of them and measure the angles. If the first two lines form the same angle with the third line, the first two are parallel.
No they are perpendicular if the intersect at a right angle. + is perpendicular, = is parallel
An angle is formed where two lines meet. Parallel lines do not meet. Therefore they do not form an angle. So there is no angle to have a name. So no name.
For two parallel line segments or rays to form an angle, they would either need to coincide with each other, forming a 0° or 360° angle, or they would need to be extending in opposite directions from their shared point, forming a 180° angle.
If you have two parallel lines, then they have the same slope. If you have another line, in the same plane as the first two lines, and it is not parallel to them, then the angle of intersection with the first line will be the same as the angle of intersection with the second line. If this angle is 90°, then the third line is perpendicular to the first line and also to the second line. For an example, think of a rectangle. Two opposite sides are parallel. Now pick one of the 3rd or 4th sides. Each of these sides is perpendicular to both the first side and the second side.
When a line cuts through two parallel lines the corresponding angles are equal.
No. They form an angle.
No. Two rays can be parallel and so would never form an angle. Also, an angle (a single one as opposed to a quartet of angles) is formed by two coterminus line segments. That is to say, the line segments stop where they meet. A ray goes on forever in both directions.
A perpendicular line is formed when two lines meet at a right angle. Opposite angles in a perpendicular line are parallel to each other.
angle bisector
They form a vertex because they are line segments. An angle is two rays with the same point