#### Answer

The perimeter of the square mat is $48$ $m$
The area of the square mat is $144$ $m^{2}$

#### Work Step by Step

Step 1: Find the perimeter.
Let $ P = $ perimeter of square mat
$P = 4(12)$ (square has four equal sides, each side is $12$m)
$P = 48$m
Step 2: Find the area.
Let $ A = $ area of square mat
$A = 12^{2}$
$A = 144 m^{2}$
Refer to Attachment1 below.