A triangle is obtusewhen an angle is larger than 90 degrees
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obtuse triangle
A triangle with 1 obtuse angle is called an obtuse triangle.
-- No right triangle, acute triangle, or equilateral triangle has an obtuse angle in it. -- 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 .
Sometimes, it can or can not be a obtuse triangle.
you know a triangle is obtuse when it is larger than a right angle which is 90 degrees. ex. a clock when it is 12:15 it makes a right angle or 90 degrees.