The perimeter of a shape is the distance around the outside. It is a length so is measured in mm, cm, m, km or any other unit of length. 1. Calculate the lengths of the missing sides. The total ...

You cannot find the perimeter of a shape if a side is open. The unit of measure you use depends on the size of the perimeter that you want to work out. If you are measuring the perimeter of this ...

The unit is zero’d out with a button ... So, the planimeter isn’t just measuring the length of the perimeter, but the size of the perimeter. The final measurement is output in square inches.