"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.
When two lines cross each other they form vertical equal opposite angles
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
Where two straight lines cross the "vertically opposite" angles are equal.
Vertically opposite angles are the angles that are formed when two lines intersect. When the lines cross, they create two pairs of opposite angles that are equal in measure. For example, if two lines intersect and form angles of 40 degrees and 140 degrees, the angles across from each other (the vertically opposite angles) will both be 40 degrees and 140 degrees, respectively. This property is a fundamental concept in geometry.