"Vertical" in this case means they share the same Vertex (corner point), not the usual meaning of up-down.
Vertically opposite angles are the angles that are opposite each other when two lines cross. Vertical means they share the same vertex.
They equal vertical angles
perpendicular lines
Where two straight lines cross the "vertically opposite" angles are equal.
A cross has 4 angles
Vertically opposite angles are the angles that are opposite each other when two lines cross. Vertical means they share the same vertex.
vertical angles are formed when two lines cross.
Generally vertical angles are the angles opposite each other when two lines cross. "Vertical" in this case means they share the same Vertex (corner point), not the usual meaning of up-down.
Angles that share a common vertex and are formed by intersecting lines are known as vertical angles. When two lines cross, they create two pairs of vertical angles that are opposite each other. These angles are always equal in measure. For example, if one angle measures 50 degrees, the opposite vertical angle will also measure 50 degrees.
When two lines cross each other they form vertical equal opposite angles
In geometry, a vertical vertex typically refers to one of the points where two lines intersect, forming vertical angles. Vertical angles are the pairs of opposite angles created when two lines cross each other. These angles are always equal in measure. The term "vertical vertex" may also be used in other contexts, such as in 3D geometry or architecture, to describe the apex or top point of a shape or structure.
Angles that cross are called perpendicular angles.
Verticle angles are angles opposite each other when two lines cross
They equal vertical angles
The Groma was a vertical staff with a bracket at the top which attached two vertical cross bards placed at right angles. There were plumb lines at the ends of the two cross- bars. It allowed to survey right angles and vertical lines and, through this, calculate rectangles and squares.
perpendicular lines
The 4 angles created add up to 360 degrees