1. **Problem Statement:** Find the perimeter of trapezoid WXYZ with sides WX = 3 cm, XY = 2.5 cm, YZ = 6.5 cm, and WZ = 5.2 cm. 2. **Formula for Perimeter:** The perimeter $P$ of a polygon is the sum of the lengths of all its sides. $$P = WX + XY + YZ + WZ$$ 3. **Substitute the given values:** $$P = 3 + 2.5 + 6.5 + 5.2$$ 4. **Calculate the sum:** $$P = 3 + 2.5 = 5.5$$ $$5.5 + 6.5 = 12$$ $$12 + 5.2 = 17.2$$ 5. **Conclusion:** The perimeter of trapezoid WXYZ is $17.2$ cm. Since the closest option is 17 cm, the answer is 17 cm.