{{one source |date=May 2024}} Plane "t" is a transversal plane because it intersects parallel planes "p" and "q".|thumb
In geometry, a '''transversal plane''' is a plane that intersects (not contains) two or more lines or planes.<ref name="sobotta">{{cite book |last1=Paulsen |first1=Friedrich |last2=Waschke |first2=Jens |date=August 20, 2018 |title=Sobotta Atlas of Anatomy, Vol.1, 16th Ed., English/Latin |url=https://books.google.com/books?id=RiWPDwAAQBAJ |publisher=Elsevier Health Sciences Germany |edition=16th |page=7 |isbn=9780702052743}}</ref> A transversal plane may also form dihedral angles.
==Theorems== Transversal plane theorem for lines: Lines that intersect a transversal plane are parallel if and only if their alternate interior angles formed by the points of intersection are congruent.
Transversal plane theorem for planes: Planes intersected by a transversal plane are parallel if and only if their alternate interior dihedral angles are congruent.
Transversal line containment theorem: If a transversal line is contained in any plane other than the plane containing all the lines, then the plane is a transversal plane.
==References== {{Reflist}}
Category:Multi-dimensional geometry
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