A plane is a flat surface that extends infinitely. Think of it as a piece of paper that goes on in every direction (but not "up" out of the paper). A horizontal plan just means that it extends horizontally (like a piece of paper on a desk). Another example would be the floor you are standing on or the ceiling above it. However, your monitor is - more than likely - facing up and down. That is NOT a horizontal plane.
Since a hexagon is a horizontal plane figure it cannot have a horizontal plane of symmetry.
vertical - - - - - - - - - - horizontal -------------------------------
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.
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A vertical or horizontal stabilizer helps the plane to be balanced
Since a hexagon is a horizontal plane figure it cannot have a horizontal plane of symmetry.
A horizontal angle is an angle between lines on a horizontal plane.
it is the Transverse plane. the transverse, or horizontal plane is a crosswise plane that runs parallel to the ground. this imaginary cut would divide the body or its parts into upper and lower portions.
transverse
because they are parallel to the plane of the horizon
The horizontal line in the Cartesian plane is called the x-axis or x-coordinate.
The Cartesian plane has only 1 horizontal axis and it is known as the x-axis.
The horizontal cut is called the transverse plane.
naku theliadhu mekemina thelusa
Tranverse plane
the plane which is perpendicular to both horizontal plane and vertical plane is called as "PROFILE PLANE"
Horizontal plane Frontal plane