No because the 3 interior angles of a triangle add up to 180 degrees no more and no less but 2 obtuse angles plus another angle would have a sum of well over 180 degrees.
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Triangles do not have to have any obtuse angles but they can have one.
There is no triangle that has 2 equal obtuse angles because the 3 interior angles of any triangle must add up to 180 degrees and 2 obtuse angles would be over 180 degrees. It is possible for a triangle to have two equal acute angles in which case it would be an isosceles triangle.
yes an obtuse triangle has two acute angles
You can draw a triangle with two obtuse angles in a sphere
You will know that a triangle is obtuse if one of its angles is over 90°.