An obtuse triangle
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obtuse angle
180 > x > 90: obtuse 180: straight 360 > x > 180: reflex
A triangle that has an angle greater than 90o is an obtuse triangle.
its a triangle * * * * * No, it an obtuse triangle is not a right angle triangle. An obtuse angled triangle has one angle which is greater than 90 degrees and the other two are acute. In a right angled triangle, the largest angle is 90 degrees while the other two are acute. So one cannot be the other.
An angle that measures greater than 180o but less than 270o is obtuse.