Question

Which set of shapes contains members that are always similar to one another?

trapezoids
isosceles triangles
equilateral triangles
rectangles
pentagons

Answer 1

C.) Equilateral Triangle

Every equilateral triangle shares the same angle measures. Therefore, by AA criterion of similarity, all equilateral triangles have to be similar.

Step-by-step explanation:

Answer 2

The correct answer is option C. i.e.Equilateral triangles. All equilateral triangle have equal sides. Due to this these set of shapes will always be similar. Similarity in the sense that only the size of the triangles can change to large or smaller but the shape will be be similar always.