400
Yes (in a Euclidean plane)..
Take any two lines and look at their slopes. -- If the slopes are equal, then the lines are parallel. -- If the product of the slopes is -1, then the lines are perpendicular.
NO. Perpendicular lines in the same plane alwaysinthersect.
yes they do
400
Yes (in a Euclidean plane)..
A line is perpendicular to a plane when it is perpendicular on two lines from the plane
C.intersecting lines
Take any two lines and look at their slopes. -- If the slopes are equal, then the lines are parallel. -- If the product of the slopes is -1, then the lines are perpendicular.
Two lines are said to be perpendicular when they are at right angles. That means that the angle between them is 90 degrees.There are other meanings of perpendicular; for example, a line is said to be perpendicular to a plane when it is perpendicular to EVERY line of the plane that goes through the intersection.
Two lines that are perpendicular to the same plane are coplanar. This means that they lay on the same plane.
NO. Perpendicular lines in the same plane alwaysinthersect.
yes they do
Yes they are. It's a postulate: In a plane two lines perpendicular to the same line are parallel.
The locus in a plane is two more intersecting lines, perpendicular to each other (and of course half-way between the given lines.
No, that is not true.