Perimeter 4 a. The exact formula requires an infinite series so approximations are used. Perimeter a b c There are several formulas for the area.
If each side has the length L the formula for the preimeter P will be.
Perimeter 4 a. Circle 2pi r. Perimeter a b c There are several formulas for the area. Perimeter s s s s Perimeter 4 s For example if s 5 meters Perimeter 4 5 20 meters Square.