Lines don't have endpoints, they extend indefinitely. Two line segments with a common endpoint form an angle.
It is important to know terminology when learning math. The Vertex is the point where two lines meet and form and angle.
junction
Edge
90 degrees
An angle is formed when two lines meet (or cross). The vertex is the point where the lines meet.An angle is formed when two lines meet (or cross). The vertex is the point where the lines meet.An angle is formed when two lines meet (or cross). The vertex is the point where the lines meet.An angle is formed when two lines meet (or cross). The vertex is the point where the lines meet.
An intersection is formed when two lines meet.
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.
cross x
A 90 degree angle is formed at a right angle.
coordinate plane
An angle is formed when two lines meet at a point.
Lines don't have endpoints, they extend indefinitely. Two line segments with a common endpoint form an angle.
triangle * * * * * What? Two lines can make an angle, but how can they make a triangle?
A perpendicular line is formed when two lines meet at a right angle. Opposite angles in a perpendicular line are parallel to each other.
a coordinate plane
Parallel Lines will never meet