Triangle in which one of the interior angles is obtuse.
Example
This triangle has 2 acute angles and one obtuse angle.
Historical note
During the Middle Ages and the Renaissance, an obtuse triangle was called a “ambligone triangle “.
Triangle in which one of the interior angles is obtuse.
This triangle has 2 acute angles and one obtuse angle.
During the Middle Ages and the Renaissance, an obtuse triangle was called a “ambligone triangle “.