Question

What must be true if triangles RST and XYZ are similiar?

Answer 1

Please see below.

Explanation:

If two triangles `∆RST` and `∆XYZ` are similar, then corresponding angles are equal and their corresponding sides are proportional.

So here `/_R=/_X`, `/_S=/_T` and `/_T=/_Z` and

`(RS)/(XY)=(ST)/(YZ)=(RT)/(XZ)`