The horizon runs horizontal. Perpendicular to that is VERTICAL.
A line is perpendicular to a plane when it is perpendicular on two lines from the plane
No, the horizon is horizontal. A vertical line is perpendicular to the horizon.
A line which divides a body into two parts, such that each part is the mirror image of the others, then the line is called a line of symmetry. If such a line is parallel to the horizontal plane, then it is called a horizontal line of symmetry. Else, if the line of symmetry is perpendicular to the horizontal plane then it is a vertical line of symmetry.
It's called a perpendicular bisector of the line segment.
In a Euclidean plane, only one.
A line is perpendicular to a plane when it is perpendicular on two lines from the plane
No, the horizon is horizontal. A vertical line is perpendicular to the horizon.
Exactly upright or vertical; pointing to the zenith; at right angles to the plane of the horizon; extending in a right line from any point toward the center of the earth., At right angles to a given line or surface; as, the line ad is perpendicular to the line bc., A line at right angles to the plane of the horizon; a vertical line or direction., A line or plane falling at right angles on another line or surface, or making equal angles with it on each side.
vertical
It is a vertical line.
I believe the answer is "perpendicular line". Forgive me if I'm wrong :)
y=0, x=R
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.
NO. Perpendicular lines in the same plane alwaysinthersect.
A line that is perpendicular to the segment of a plane and passes through the midpoint.
No
The line perpendicular to a barrier is called the normal.