Which if the following combination are possible for the three angles of a triangle

As regard their sides, triangles may be

Scalene (all sides are different)Isosceles (two sides are equal)Equilateral (all three sides are equal)

And as regard their angles, triangles may be

Acute (all angles are acute)Right (one angle is right)Obtuse (one angle is obtuse)Equiangular (all angles are equal)

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