What is the perimeter? If necessary, round to the nearest tenth millimeters?

To calculate the perimeter of a shape, you need to add up the lengths of all its sides.

For example, if you have a rectangle with a length of 5 mm and a width of 3 mm, the perimeter (P) is calculated as:

P = 2(length + width)

P = 2(5 mm + 3 mm)

P = 2(8 mm)

P = 16 mm

If you provide the specific dimensions of the shape you’re working with, I can help you find the perimeter!