Formulas

• Area of a Square - A = s²
• Perimeter of Square - P = 4s
• Area of a Triangle - A = bh/2
• Perimeter of a Triangle - P = a + b + c
• Area of a Rectangle - A = lw
• Perimeter of a Rectangle - P = (2l) + (2w)
• Area of a Parallelogram - A = bh
• Perimeter of a Parallelogram - P = 2a + 2b
• Area of a Trapezoid - A = 1/2[(a+b)h]
• Perimeter of a Trapezoid - P = a + b + c + d
• Volume of a Cube - V = s³
• Surface Area of a Cube - SA = 6s²
• Volume of a Right Circular Cylinder - V = πr²h
• Surface Area of a Right Circular Cylinder - SA = 2πrh
• Volume of a Right Circular Cone - V = 1/3πr²h
• Surface Area of a Right Circular Cone - SA = πr√r²+h²
• Volume of an Irregular Prism - V = bh
• Circumference of a Circle - C = 2πr 
• Area of a Circular Region - A = πr²
• Diameter of a Circle - 2r
• Volume of a Sphere - V = 4/3πr³
• Surface Area of a Sphere - SA = 4πr²