Jose has circular rug on the floor of his bedroom. if the area of the rug is 16pie square feet, what is the diameter of the rug?

By definition the area of a circle is given by:
 A = pi * r ^ 2
 Rewriting:
 A = pi * (d / 2) ^ 2
 A = (pi / 4) * (d) ^ 2
 Where,
 d: diameter.
 By clearing the diameter we have:
 d = ((4 / pi) * A) ^ (1/2)
 Substituting the area
 d = ((4 / pi) * (16)) ^ (1/2) = 4.51 feet
 
 The diameter of the rug is 4.51 feet

Find the perimeter of the figure shown above with a side length 5 units.(each figure is a square).a.10 unitsc.30 unitsb.20 unitsd.40 units select the best answer from the choices providedabcdmark this and return