Perimeter Article Index for
Perimeter
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Perimeter
 

Information About

Perimeter





PRACTICAL USES

Perimeter and Area play a great role in today's world. Perimeter is used in calculating the border of an object such as a yard or flowerbed when a fence or other border is being installed around the edges. Area is used when all the area inside of a perimeter is being covered with something, such as a yard being covered with sod or fertilizer.


FORMULAS


Polygons

As a general rule, the perimeter of a Polygon can always be calculated by adding all the length of the sides together.
So, the formula for Triangles is P=a+b+c, where a, b and c stand for each side of it. For Quadrilaterals the equation is P=a+b+c+d. For Equilateral Polygon s, P=na, where n is the number of sides and a
is the side length.


Circles

For Circles the equation is
:
P = 2 \cdot \pi \cdot r

or
:
P = d \cdot \pi




SEE ALSO


See also: