(ת') משולש

בגאומטריה מקובלות 2 דרכים להגדרתו של משולש:

• על פי מושגים יסודיים: "שלוש נקודות  שאינן על קו ישר אחד והקטעים הם משולש".
• כמקרה פרטי של הגדרה כללית יותר: משולש הוא מצולע בעל שלוש צלעות.

במשולש יש שלוש זוויות ושלושה קודקודים.

להמשך המאמר ראה Wikipedia.org...

adj. pertaining to a triangle; shaped with three sides and three corners; triple

See more at Wikipedia.org...

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Adjective
1. having three angles; forming or shaped like a triangle; "a triangular figure"; "a triangular pyrimid has a triangle for a base"
(similar) angular, angulate
2. involving three parties or elements; "the triangular mother-father-child relationship"; "a trilateral agreement"; "a tripartite treaty"; "a tripartite division"; "a three-way playoff"
(synonym) trilateral, tripartite, three-party, three-way
(similar) multilateral, many-sided
3. having three sides; "a trilateral figure"
(synonym) trilateral, three-sided
(similar) multilateral, many-sided

adv. triangularly, in a triangular manner; in the shape of a three-sided polygon; triply

adj. triangular, pertaining to a triangle; shaped with three sides and three corners; triple

adj. triangular, pertaining to a triangle; shaped with three sides and three corners; triple