Greater than 90 degrees but less than 180 degrees.
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It can be an obtuse triangle with 2 different acute angles or it can be an isosceles triangle with 2 equal base angles of 17.5 degrees
No, an equilateral triangle can not be an obtuse triangle. All angles in an equilateral triangle are 60o. An obtuse triangle has 1 angle that is greater than 90o.
An isosceles obtuse triangle is a triangle with 1 obtuse angle and only 2 congruent sides.
obtuse
No triangle has 2 obtuse angles