Perimeter is the distance around the outside edges. The simplest method is to measure the edges, and add them together.
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If you know the perimeter, there is no need to find it again.
There is no reason for the perimeter of a triangle to have any relation to the perimeter of an unrelated rectangle!
There are many formulas for perimeter depending on what shape you are trying to find the perimeter of. The perimeter is the distance around a shape, so one formula to find perimeter is simply adding all the side lengths together.
Not easily. You need to find the area or perimeter of the components and sum them.
It,s easy. a+b+c= perimeter