The Crypt/Basic Algebra

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  Basic Algebra 
    Formulas 

■□■□■□■□■□■□■□■□■□■ ● 2-D Formulas

◇ Rectangle
   p = 2 (l x b)
   a = l x b
◇ Square
  p = 4 a
  a = a^2
◇ Triangle
  a = 1/2 x b x h
◇ Trapezoid
  a = 1/2 x (b➀ + b➁)                         x h
     

● 2-D Formulas

◇ Circle
 a = π x r^2
 c = 2 π r
◇ Ellipse 
 a = π a b^a

● 3-D Formulas

◇ Cube
 sa = 6 a^2
 v = a^3a

● 3-D Formulas

◇ Cylinder
 sa = 2 π r(r + h)
 v = π r^2 h
◇ Cone
 sa = π r(r + l)
 v = 1/3 x π r^2 h
◇ Sphere
 sa = 4 π r^2
 v = 4/3 π r^2

● Basic Percentage

      Formula
◇ Percentage =
  (Given Value/ 
  Total Value) x 100
          

● Pythagorean Theorem

 ◇ a^2 + b^2 = c^2

● Slope-Intercept

◇ y = mx + b

● Fractional Exponent

◇ a^1/2 = √a   

● Simple Interest

◇ S.I = P × R × T/100

● Compound Interest

◇ C.I =P (1 + R/100 )n     – P 

● Distance Formula

◇ d = st