The details vary, depending on the figure. The perimeter is the distance around a figure. This normally involves addition - you have to add all the sides. You will only use multiplication if you know that two or more sides have the same length, as in a rectangle, a square, or a regular polygon.
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s=side length P=perimeter P=4s
Take the measurement of one side of the square and multiply it by 4.
you find the perimeter of one side and multiply it by how many you have the same number.
i dont no if you can find the perimeter of a triagle by using subtration the formula is adding all the up together.
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