obtuse triangle

noun

, Geometry.

1. a triangle with one obtuse angle.

Example Sentences

The elevation defied geometry, with a roof line that rose from 9 feet at one side of the house to about 20 feet on the other like one leg of an obtuse triangle.

From Washington Blade

Thus the American army stood (p. 79) like an obtuse triangle of which the British line formed the base.

From Project Gutenberg