When two lines intersect, they form pairs of opposite angles known as vertical angles. These vertical angles are always equal to each other. For example, if two lines intersect and create angles of 30 degrees and 150 degrees, the angles opposite to each other (the vertical angles) will both measure 30 degrees and 150 degrees, respectively. This property holds true for all intersecting lines.
They are the angles opposite each other when two lines intersect.
They are simply called opposite angles.
Vertical angles
When 2 lines intersect, 4 angles are formed. The angles that are directly opposite to each other are called opposite angles.
When two lines intersect, the angles across from each other are called vertically opposite angles, or just opposite angles. Opposite angles are equal to one another. See 'related links' below.
Opposite angles are equal.
They are the angles opposite each other when two lines intersect.
They are simply called opposite angles.
vertical angles
opposite equal angles
Vertical angles
When 2 lines intersect, 4 angles are formed. The angles that are directly opposite to each other are called opposite angles.
When two lines intersect, the angles across from each other are called vertically opposite angles, or just opposite angles. Opposite angles are equal to one another. See 'related links' below.
A pair of opposite equal angles are formed when two lines intersect each other.
Vertical AnglesVertical anglesVertically opposite angles. (vert. opp.)
Equal vertical opposite angles are created when straight lines intersect each other
Equal angles