acute angle An angle whose measure is between 0° and 90°. Compare obtuse angle. |
At the bottom of the falls the river turns an acute angle and flows to the west.
Suddenly we turned into a valley, at an acute angle with our previous road.
Then both our chins assumed an acute angle and remained thus.
As in the triangle aei, let the angle at i, be taken for an acute angle.
The third part, That it is greater than any acute angle; is manifest out of the 23.
A piece of steel on a helmet, presenting an acute angle to the front.
He struck it at an acute angle, and that showed him he had made a good line.
It is perforated near the most acute angle and also through the base.
They glided as far as the acute angle of the Rialto and turned back.
Already the adventurers could peer down upon it at an acute angle.
An angle that measures less than ninety degrees but more than zero degrees. (Compare obtuse angle and right angle.)