opposite angles
Across the vertex
Opposite angles are pairs of angles that face each other when two lines intersect, sharing only a vertex.
Also called vertical angles, they are always equal in measure.
The term also applies to angles at opposite corners of a quadrilateral: The opposite angles of a parallelogram are congruent.
- propertiesQualities or owned assets
- proofsDemonstrations of truth
- vertexPoint where edges converge
- equalIdentical in amount
- intersectionPoint where paths meet
geometry · congruence · parallel lines · definition · degrees · transversals · theorems · symmetry · protractor · mathematics · diagrams · constructions · geometric proof · polygons · bisector · circles · rotation · perpendicularity
geometric angle relationships
opposite anglesadjacent angles
Angles sharing one side
supplementary angles · complementary angles · corresponding angles
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