right-angled triangle
Noun
Meaning
a triangle with one right angle
Source: WordNetAlternative names
right angled triangle
Synonyms
right triangle
acute triangle
acute-angled triangle
equilateral triangle
isosceles triangle
obtuse triangle
obtuse-angled triangle
equiangular triangle
ideal triangle
normal triangle
long triangle
constant triangle
isosceles obtuse triangle
non-isosceles triangle
usual triangle
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Antonyms
Hypernyms
Examples
Right triangle A right triangle ( American English ) or right-angled triangle ( British English ) is a triangle in which one angle is a right angle (that is, a 90- degree angle).
Therefore, in a right-angled triangle, the two non-right angles total 90° ( radians), so each of these angles must be in the range of (0°,90°) as expressed in interval notation.