A line. When two planes intersect, their intersection is a line.
Two line segments are parallel if the distance between them is the same from one end of the line segment to the other, or if they never intersect. They may very well be different lengths which would give them different midpoints. In fact if you plotted them on the x,y, cartesian coordinate system, even if they were the same lenght, the midpoint would be different since the lines never intersect.
They are perpendicular line segments
Two planes intersect at a line. The line where they intersect pertains to both planes. In the same manner, if infinitely many planes intersect each other at the same line, then that line pertains to the infinitely many planes.
yes two lines intersect to form a point two planes intersect to form a line
whatto line segments intersect but are not perpendicular
Line segments that do not intersect are parallel lines
well
make an angle (or 4 angles).
intersecting lines Anthony J. Suero
If they intersect at right angles which is 90 degrees then they are perpendicular lines.
A polygon is formed by taking line segments and allowing them to cross or intersect. You must let each segment intersect exactly two others. The result is a polygon.
I classify a parallel line as two line segments that will never intersect if the line kept going. They are perfectly straight and even.
Two planes intersect at a line
their slopes are negative reciprocals of each other. and they make a right angle when they intersect.
no yes of course. they can intersect infinite times when they coincide
No, a segment is a piece of a line. However, two segments that intersect at a point make an angle. In fact, the segments that make up the angle are called the sides of the angle.