-- If a triangle has an obtuse angle in it, then it's called an obtuse triangle.
-- No triangle can have more than one obtuse angle in it .
-- Right triangles, acute triangles, and equilateral triangles don't have any
obtuse angles in them.
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None. An acute triangle is one in which all angles are acute. An obtuse triangle is one in which one of the angles is obtuse. A right angled triangle is one in which one angle is a right angle (90o)
obtuse triangle
A triangle with one angle over 90 degrees is an obtuse triangle.
An Obtuse Triangle
An obtuse triangle