An obtuse angle is an angle larger than a square corner. An obtuse angle at the base, measure the obtuse angle, clearly obtuse.
It is over ninety degrees and under a straight line, and a triangle can hold only one. The obtuse in it means blunted, which is the same word as the insult about being slow to understand.
1nounobtuse angleAn angle larger than a square corner.
“The two walls of the room meet at an obtuse angle, so the corner looks wide and open.”
obtuse angle is an angle.
Practised in Light & Shadow, Shapes & Lines