What is the perimeter if the area is 48?

The area doesn't tell you the perimeter.

If your area of 48 is inside a circle, then it has a perimeter (circumference) of 24.56 .

If the area of 48 is inside a square, then the perimeter is 27.7 .

Here are a few different rectangles and their perimeters.

All of these have areas of 48:

1 x 48 . . . . . 98

1.5 x 32 .. . . 67

2 x 24 . . . . . 52

2.4 x 20 .. . . 44.8

3 x 16 . . . . . 38

3.2 x 15 .. . . 36.4

4 x 12 . . . . . 32

4.8 x 10 .. . . 29.6

5 x 9.6 .. . . . 29.2