None. A quadrilateral cannot be similar to any triangle.
Yes, it can always be divided in 2 triangles. This is because every quadrilateral has 2 diagonals. It is these diagonals that divide the quadrilateral into 2 triangles.
A quadrilateral has four sides. Triangles have three sides.
Not always, sometimes two obtuse triangles are similar and sometimes they are not similar.
Two equilateral triangles are always similar!
90 degree triangles are always similar.
yes
No.
Yes, in similar triangles, the angles are always congruent, and the sides have the same proportions to each other.
Equilateral triangles are always similar because the will always have sixty-degree angles, and the sides will always have the same 1:1:1 ratio.
it's impossible to have a quadrilateral that can't be cut into triangles.
none the diagonal will always be bigger than a side
Two triangles