Posted by
**Jenna** on
.

BD is a perpendicular bisector of triangle ABC. XZ is a perpendicular bisector of triangle WXY.

Triangle ABC is similar to triangle WXY with a scale factor of 1:3.

Part I. Find BD, AB, WZ, XZ and WX.

Part II. What is the scale factor of the perimeters of triangle ABC and triangle WXY?