They are said to be similar but not congruent triangles.
Pairs of triangles, in general, do not have to be similar.
Yes. Similar triangles have equal corresponding angles, and so do congruent triangles.
They are similar triangles.
why triangle are similar
There are no ratios that can be used for triangles that are not similar.
Two equilateral triangles are always similar!
No Not all Isosceles right triangles are similar.
no theycan not