vertical angle
Crossing lines' equals
Vertical angles are the pair of opposite angles formed when two lines cross.
They share only a vertex, not a side, and are always equal in measure.
The term distinguishes these from adjacent angles, which share both a vertex and a side.
Vertical angles are congruent is a basic theorem in geometry.
geometry
Reverse or contrary thing
- congruentIdentical in form
- transversalLine crossing multiple others
- intersectionPoint where paths meet
- vertexPoint where edges converge
supplementary · complementary · adjacent · parallel lines · theorem · proof · degrees · protractor
opposite
Reverse or contrary thing
- congruentIdentical in form
- transversalLine crossing multiple others
- intersectionPoint where paths meet
vertex · supplementary · complementary · adjacent · parallel lines · theorem · proof · degrees · protractor · acute
- viewing anglesfield of view, frontal view, side view
- surveyingsurveyor, theodolite, land surveys, survey markers, traverse
vertical, vertically, verticality, angle, angles, angled, angling, angular, angularity