obtuse triangle

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obtuse′ tri′angle

a triangle with one obtuse angle.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.obtuse triangle - a triangle that contains an obtuse interior angleobtuse triangle - a triangle that contains an obtuse interior angle
triangle, trigon, trilateral - a three-sided polygon
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References in periodicals archive ?
"Instructors tell students what an obtuse triangle is so they can go back to the classroom and tie it all together with the right words.
Pronotum relatively flat, frontal margin of pronotum slightly projecting as obtuse triangle; median carina completed, lateral carinae parallel on prozona, the prozona nearly square; humeri forming an obtuse triangle, with a pair of abbreviated carinaes between humeri.