it is called a ...
Vertical
Verticle angles.
IN
This is the square. In case you're wondering about the 4 lines of symmetry, they are a vertical line through the middle, a horizontal line across through the middle, and the two diagonal lines drawn in from corner to corner. Only the square will be symmetrical with any of those 4 lines.
Vertical Angles or 4
170 diagonals
Vertical lines are lines that are drawn / made perpendicular to the horizon. In other words, they go "ceiling to floor", not "wall to wall" or "corner to corner."
In geometry, a corner refers to the point where two lines or line segments meet. It is the intersection point of two sides of a polygon or the meeting point of two edges of a polyhedron. A corner is also known as a vertex.
Vertical
Verticle angles.
Vertical
IN
Verticle angles.
Vertical Angles
yes
Nonadjacent angles formed by two intersecting lines are pairs of angles that do not share a common vertex or side. When two lines intersect, they create four angles, and the angles that are opposite each other are called vertical angles, which are nonadjacent. For example, if two lines intersect, the angles formed at the intersection can be labeled as angles 1, 2, 3, and 4; angles 1 and 3, as well as angles 2 and 4, are nonadjacent to each other.
A polygon with 12 sides, also known as a dodecagon, has 12 lines of symmetry. Each line of symmetry can be drawn through a vertex and the midpoint of the opposite side or through the midpoints of opposite sides. This symmetry reflects the regularity of the dodecagon, assuming it is a regular polygon.