Sometimes.
sometimes, the altitude of isosceles triangles resting on their base and equilateral triangles are angle bisectors
Two equilateral triangles are always similar!
Sometimes triangular prisms have isosceles triangle bases. It is the most common, but they don't always have isosceles triangles.
Never
No because isosceles triangles always have two equal sides
No
Yes, they are.
Not always, sometimes two obtuse triangles are similar and sometimes they are not similar.
sometimes, the altitude of isosceles triangles resting on their base and equilateral triangles are angle bisectors
Two equilateral triangles are always similar!
Sometimes triangular prisms have isosceles triangle bases. It is the most common, but they don't always have isosceles triangles.
sometimes
Sometimes similar but it depends
Never
No because isosceles triangles always have two equal sides
The two acute angles are always equal.
Nope sorry, a Rhombus will be split into 2 isosceles triangles and 1 equilateral triangle.