Concept information
Preferred term
right triangle
Definition(s)
-
A right triangle (American English) or right-angled triangle (British), or more formally an orthogonal triangle, formerly called a rectangled triangle (Ancient Greek: ὀρθόσγωνία, lit. 'upright angle'), is a triangle in which one angle is a right angle (that is, a 90-degree angle), i.e., in which two sides are perpendicular. The relation between the sides and other angles of the right triangle is the basis for trigonometry. The side opposite to the right angle is called the hypotenuse. The sides adjacent to the right angle are called legs (or catheti, singular: cathetus).
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Right_triangle)
Broader concept(s)
Narrower concept(s)
Synonym(s)
- orthogonal triangle
- right-angled triangle
In other languages
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French
URI
http://data.loterre.fr/ark:/67375/PSR-WW75956Z-P
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