the equilateral isosceles and scalene
No. But all isosceles triangles and equilateral triangles are.
Yes. But not all isosceles triangles are equilateral.
no
Triangles are equilateral triangles only when all of their 3 sides are equal in lengths.
Yes.
All isosceles triangles are not equilateral triangles
Yes all equilateral triangles are acute triangles, but not all acute triangle are equilateral triangles.
No. But all isosceles triangles and equilateral triangles are.
All isosceles triangles are not equilateral triangles
yes. all triangles.
Yes. But not all isosceles triangles are equilateral.
What is the names of all the triangles?
no
No. Only right triangles do, and not all triangles can be right triangles. Equilateral triangles, for example, are always 60°-60°-60°. Isosceles and scalene triangles can be right triangles; all isosceles triangles have the additional useful property of being able to be split into two right triangles.
because all triangles can be drawn with a compass
The set of all triangles, probably.
Triangles are equilateral triangles only when all of their 3 sides are equal in lengths.