None, by definition
scalene triangle dose not have any equal sides or angles =)
A isosceles triangle can have two equal angles, but an equilateral triangle is actually a special isosceles triangle, so it could also have 3.
all triangles have three corners. An isosceles triangle also has two sides and atwo angles that are equal.
Yes it dose.
It has 2 pairs of opposite equal angles which are acute and obtuse.
Yes, it has to in order to be a triangle.
A right-angle triangle will have one right-angle (90 degrees).
Every triangle has 3 interior angles thar add up to 180 degrees
If has anything other than three it's not a triangle...
A triangle can have either zero or one obtuse angles, but no more than that. An obtuse angle is one that is greater than 90 degrees. The interior angles of a triangle always add up to 180.