English > triangle: 5 senses > noun 1, shape| Meaning | A three-sided polygon. |
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| Synonyms | trigon, trilateral |
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| Narrower | acute triangle, acute-angled triangle | A triangle whose interior angles are all acute |
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| equilateral triangle, equiangular triangle | A three-sided regular polygon |
| isosceles triangle | A triangle with two equal sides |
| oblique triangle | A triangle that contains no right angle |
| obtuse triangle, obtuse-angled triangle | A triangle that contains an obtuse interior angle |
| right triangle, right-angled triangle | A triangle with one right angle |
| scalene triangle | A triangle with no two sides of equal length |
| wedge, wedge shape, cuneus | Any shape that is triangular in cross section |
| Broader | polygon, polygonal shape | A closed plane figure bounded by straight sides |
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| Spanish | triángulo, trilateral |
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| Catalan | triangle, trilateral |
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| Adjectives | triangular | having three angles |
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| triangular | having three sides |
| triangulate | composed of or marked with triangles |
| Verbs | triangulate | survey by triangulation |
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| triangulate | divide into triangles / triangles or give a triangular form to |
