Algebra Formulas

Area of a Square Formula
A = 2S




 Where A stands for area, S stands for Sides.



Perimeter of a Square Formula
P = 4S

Where P stands for perimeter, S stands for Side.


Area of a Rectangle Formula
A = LW


Where A stands for area, L stands for length and W width .


Perimeter of a Rectangle Formula
P = 2L + 2W


Where P stands for perimeter, L stands for length and W width .



Area of a Circle Formula





Where A stands for area, and r stand for radius.

 


Circumference of a Circle Formula
P = 2πr

Where P stands for perimeter, and r stands for radius.




Distance Formula

The distance between two point in the Cartesian Plane with coordinates A(x1,y1) and B(x2,y2) has the formula:



This formula is derived from the Pythagorean Theorem.
 

Quadratic Formula




The quadratic formula is used when finding solutions of a quadratic equation of the form: