When two straight lines intersect at right angles, the two lines are perpendicular to each other, an

When two straight lines intersect at right angles, the two straight lines are perpendicular to each other, and the intersection of these two straight lines is called the perpendicular foot.

If the angle between two straight lines is a right angle, then the two straight lines are said to be perpendicular to each other, and one of the straight lines is called the perpendicular line of the other straight line.

Their intersection is called the perpendicular foot, or a straight line intersects perpendicularly with another line, and its intersection is called the perpendicular foot of that line.

Nature

Vertical feet have the following two properties:

1) Pass a point and only one line is perpendicular to a known line.

2) Among all the line segments obtained by connecting a point outside a straight line with all points on a straight line, the perpendicular segment is the shortest (referred to as the shortest perpendicular segment).

The distance from the point outside the line to the line: The length from the point outside the line to the perpendicular segment of the line, called the distance from the point to the line.

Perpendicularity is a special relationship that reflects two straight lines, and whether two intersecting straight lines are perpendicular is determined by the angle they form. In the definition, "one angle is a right angle" refers to any one of the four angles, and there is no limit to which angle, in fact, using the knowledge learned before, you can know that if one angle is a right angle, the other three angles must also be right angles.

Perpendicular lines are a special case of intersecting lines, and in the future, if you encounter two line segments perpendicular, rays, line segments perpendicular, and two rays perpendicular, it means that the straight line where they are located is perpendicular.

The point of "passing a point" in the nature of the perpendicular line can be a point outside the straight line or a point on a straight line, "there is and only" means that there is one and there is only one, that is, there must be one and there cannot be more than one, and the distance from the point to the straight line is the length of the perpendicular segment, which is a positive number, not the perpendicular segment itself.

The above content reference: Encyclopedia - Hanging Feet.

When a straight line intersects at a right angle, the two straight lines are called two straight lines, and one of them is called the perpendicular line of the other, and their intersection point is called the perpendicular line.

Perpendicular means that when the angle formed by two straight lines is a right angle, they are said to be perpendicular to each other. This concept can also be generalized to the case between two planes or between straight lines and planes.

Perpendicular nature: In the same plane, there is one and only one line perpendicular to a known line at a point.

Of all the segments connecting a point outside the line to the points on the line, the perpendicular segment is the shortest.

To put it simply: the perpendicular segment is the shortest.

Distance from point to line: The length from a point outside the line to the perpendicular segment of the line, called the distance from the point to the line.

Perpendicular point, because the two lines are perpendicular to each other, so that the angle between the two lines is 90 degrees, so it is a perpendicular point.

When two straight lines intersect at right angles, the two lines are (perpendicular) to each other; One of the straight lines is called the other straight line (perpendicular); The intersection of these two lines is called the (intersection).

The first is vertical, and the second is vertical.

Actually, I'm the one who asks and I don't know anything