a perimeter is the distance around an object, so just add the sides up
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Perimeter.
If you mean "isosceles" triangle, the perimeter is the sum of twice the known side plus the base.
Do you mean perimeter?The sum of the lengths of the four sides of a square is the perimeterThe total length of the circumference of a circle is its perimeter
It means you have found the distance around that figure.
P = the distance around a figure. A = the surface it takes up.