Question

what is the perimeter of this square? 15 mm millimeters

Explanation:

Step1: Recall perimeter formula for square

The perimeter $P$ of a square is given by $P = 4s$, where $s$ is the side - length of the square.

Step2: Substitute side - length value

Given $s = 15$ mm, then $P=4\times15$.

Step3: Calculate the result

$4\times15 = 60$ mm.

Answer:

60