Area and Perimeter Formulas

Triangle

Equilateral TriangleIsosceles TriangleScalene Triangle

Square

Rectangle

Rhombus

Rhomboid

P = 2 · (a + b)

A = b · h

Area of Trapezoid

Area of a Regular Polygon

n is the number of sides

Polygon

The area is obtained by triangulating the polygon and adding the area of these triangles.

A = T1 + T2 + T3 + T4

Circle

Circular Sector

Circular Segment

The circular area of the segment AB = Area of the circular sector AOB - Area of triangle AOB

Lune of Hippocrates

Area of the lune = area of the semicircle − area of circular segment.

 

Circular Trapezoid

Area Enclosed between Two Concentric Circles

Surface Area and Volume Formulas

Tetrahedron

Octahedron

Icosahedron

Dodecahedron

Cube

Cuboid

Prism

Pyramid

Truncated Pyramid

Cylinder

Cone

Truncated Cone

Sphere

Spherical Wedge

   Spherical lune

Spherical Cap

Spherical Segment

   Spherical zone

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Emma

I am passionate about travelling and currently live and work in Paris. I like to spend my time reading, gardening, running, learning languages and exploring new places.

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