It has 3 interior angles one of which is an obtuse angle and the other two are acute angles and the 3 angles add up to 180 degrees.
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It will be an obtuse or an isosceles triangle which would look like a straight line
obtuse triangle
An obtuse triangle has an obtuse angle.
An oxymoron. An equilateral triangle cannot be obtuse; an obtuse triangle cannot be equilateral.
There are five different types of triangles named after their angles. Right triangle, Acute triangle, Isosceles Triangle ,equilateral triangle, and obtuse triangle. The Obtuse Triangle is the triangle with an obtuse angle.