These are some of the most popular formulas used in geometry to calculate the circumference, area, volume, and surface areas of various shapes such as squares, rectangles, triangles, parallelograms, circles, trapezoids, and so on.

**Geometry Formulas List**

The following is a collection of different formulae related to geometry that you can use according to the shape of the geometric object.

The perimeter of a Square = 4(Side)

Perimeter of a Rectangle = 2(Length + Breadth)

Area of a Square = Side^{2}

Area of a Rectangle = Length × Breadth

Area of a Triangle = ½ × base × height

Area of a Trapezoid = ½ × (base_{1} + base_{2}) × height

**Basic geometry formulas where the mathematical constant π is used are**,

Area of a Circle = A = π×r^{2}

Circumference of a Circle = 2πr

The curved surface area of a Cylinder = 2πrh

Total surface area of a Cylinder = 2πr(r + h)

Volume of a Cylinder = V = πr^{2}h

The curved surface area of a cone = πrl

Total surface area of a cone = πr(r+l) = πr[r+√(h^{2}+r^{2})]

Volume of a Cone = V = ⅓×πr2h

Surface Area of a Sphere = S = 4πr^{2}

Volume of a Sphere = V = 4/3×πr^{3}

where,

r = Radius;

h = Height. and,

l = Slant height