First, you must know the lengths of the sides of the square.
26cm
The perimeter of a square with a diagonal length of 24 square root 2 millimeters (33.94 mm) is: 96 mm
The perimeter is 60 mm
The area of square is : 2304.0
It is 4*67 = 268 millimetres.
1 centimeter equal 10 millimeters
You use linear units to express it, such as meters or millimeters, if that's what you mean.
10mm/ 4 sides into 40mm = 10mm per side.
6.2mm
There are 100 square millimeters in a square centimeter. This is because a square centimeter is 10 millimeters by 10 millimeters, giving a total of 100 square millimeters.
The perimeter of the square is 96.
Just as you can't ADD, SUBTRACT or CONVERT, for example, from meters to square meters and vice versa, you can't COMPARE them either. Just comparing the numbers doesn't make sense, since the numbers are quite arbitrary (they depend on the units used.As an example: a square of 1 meter x 1 meter has an area of 1 (square meter) and a perimeter of 4 (meters). But if you express the SAME square in millimeters, it has an area of 1000 x 1000 = 1 million (square millimeters), and a perimeter of 4000 (millimeters). So, as you can see, there is no sensible way of comparing area and perimeter.