Answer:
40 m
Step-by-step explanation:
A rhombus is a quadrilateral whose four sides all have the same length.
The perimeter of the rhombus will be the total addition of the lengths of the four sides or rather, since a rhombus has all its four sides equal, then its perimeter will be 4 times the length of one of the sides.
side length = 10 m
perimeter = 10 x 4 = 40 m
