Answer:
An equilateral triangle cannot be similar to a right triangle, whereas an isosceles triangle can be similar to a right triangle.
Step-by-step explanation:
A right triangle must have a 90º angle, so it cannot be equilateral in side length and angle since the figure would no longer be a triangle.
Isosceles triangles have two same sides, so two equal angles. A right triangle can be a 45º, 45º, and 90º.
