What is the total perimeter of 6 square feet?

You can't tell the perimeter from the area. There are an infinite number of different shapes,

all with different perimeters, that have the same area. Even if you only consider rectangles,

there are still an infinite number of those that all have the same area and different perimeters.

Here are a few rectangles with area of 6 square feet:

Dimensions ... Perimeter

0.75 x 8 . . . . . . 17.5

1 x 6 . . . . . . . . 14

1.5 x 4 . . .. . . . 11

2 x 3 . . . . . . . . 10