The perimeter of a shape is the distance around the outside, for instance, the length of all the sides of a square added together.
The area however, is the amount of space within the shape, for example, to find the area of a square, you would simply multiply the length of the side by length of the side.
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The perimeter has nothing to do with the area you have to times the width times height times length and that will give you the area of the shape
It is called perimeter.
A circle.
Nothing
If you double (2 times) the perimeter the area will will be 4 times larger. Therefore the area is proportional to the square of the perimeter or the perimeter is proportional to the square root of area. The relationship as shown above applies only to triangles with similar proportions, that is when you scale up or down any triangle of fixed proportions. Other than that requirement, there is no relationship between perimeter and area of any shape of triangle except that it can be stated that the area will be maximum when the sides are of equal length (sides = 1/3 of perimeter).