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obtuse angle

noun

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


obtuse angle

/ ŏb-to̅o̅s /

  1. An angle whose measure is between 90° and 180°.
  2. Compare acute angle


obtuse angle

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


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Other Words From

  • ob·tuse-angled ob·tuse-an·gu·lar [uh, b-, toos, -, ang, -gy, uh, -ler, -, tyoos], adjective
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Word History and Origins

Origin of obtuse angle1

First recorded in 1560–70
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Example Sentences

The second Swastika has its ends bent at an obtuse angle to the left, and at the extremities the lines taper to a point.

Directly across from them at a table which formed a wide obtuse angle with theirs were four girls.

Here another line of marked trees was found, the course of which formed an obtuse angle with the one we had followed.

It consists of a wooden frame supporting a flat glass bulb with a long neck bent upward at an obtuse angle (Fig. 53).

The trunk appears to be composed of two parts joined together, and forming a more or less obtuse angle (Fig. 56).

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obtuseobtuseness