none
If has anything other than three it's not a triangle...
3 angles
An obtuse triangle can have no right angles, and has two equal angles.
A right triangle can have 2 equal angles if they are each 45° (any other right triangle will have no equal angles)
none
If has anything other than three it's not a triangle...
3 angles
An obtuse triangle can have no right angles, and has two equal angles.
A right triangle can have 2 equal angles if they are each 45° (any other right triangle will have no equal angles)
3
No right triangle can have any obtuse angles inside it.
it can have 1 if it is a right triangle.
None, by definition
A triangle can have at most one right angle.
A triangle can have a maximum of 1 right angle!
it depends on what type of triangle