The perimeter is the sum of the lengths of the sides if the shapes has straight sides. They can be measured with a ruler.
The perimeter of a circle can be calculated as diameter x pi where pi is 3.1416 the diameter can be measured.
The perimeter of an irregular shape can only be measured by a rotating wheel.
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in math terms, the perimeter is the measure around the shape.
take a ruler and measure it
If 40 is the measure of one side, the perimeter is 160.
We use perimeter to measure the length and breadth so that we can easily find out the measurement of a figure
Metre.