There are 20 common points.
there both lines
3 intersecting lines, because none of the three points are right angles.
Two lines are intersecting if they have exactly one point in common.
Lines intersect if the meet at one point. Perpendicular lines also meet at one point, but their intersection is a right angle. Intersecting lines in the plane do not meet at two points.
One.
intersecting lines
There are 20 common points.
No, parallel lines never intersect, so they do not have any points in common. Intersecting lines have one common point.
one solution
They have an infinite number of solutions.
there both lines
3 intersecting lines, because none of the three points are right angles.
Two lines are intersecting if they have exactly one point in common.
Lines intersect if the meet at one point. Perpendicular lines also meet at one point, but their intersection is a right angle. Intersecting lines in the plane do not meet at two points.
intersecting lines
Intersecting lines