What does the coordinate rule for making two similar shapes relate to the scale factor

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

Which point-slope form equation represents a line that passes through (3,-2) with a slope of -4/5

The statements below can be used to prove that the triangles are similar. ? △abc ~ △xyz by the sss similarity theorem. which mathematical statement is missing? ∠b ≅ ∠y ∠b ≅ ∠z