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obtuse angle

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noun

an angle greater than 90° but less than 180°.

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Origin of obtuse angle

First recorded in 1560–70
ob·tuse-an·gled, ob·tuse-an·gu·lar [uhb-toos-ang-gyuh-ler, -tyoos], /əbˈtusˈæŋ gyə lər, -ˈtyus/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Scientific definitions for obtuse angle

obtuse angle
[ ŏb-tōōs ]

An angle whose measure is between 90° and 180°. Compare acute angle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for obtuse angle

obtuse angle

An angle that measures more than 90 degrees but less than 180 degrees. (Compare acute angle and right angle.)

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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