Question

Multiple similarity transformations are performed on a triangle. Which elements must be preserved?

Answer 1

the angle measure is what needs to be preserved.

Answer 2

Explanation:

In this question we should understand the meaning of similarity first.

If a triangle is transformed into another triangle which is similar to first one, both the triangles will have same angles and their corresponding sides will be in the same ratio.

Therefore, same thing or preserved thing after multiple transformation will be Measure of angles.