Answer:
20
Step-by-step explanation:
A rhombus has 4 congruent sides, so the length of the perimeter will be 4 times the length of one side. Vertices of a polygon are named in order so in rhombus WXYZ, the vertices W and X are adjacent and are the endpoints of one side.
One side measures 5 and there are 4 sides of that length. The perimeter is ...
4 · 5 units = 20 units