Area and perimeter calculation

Formulas for the calculation of area and perimeter of plane figures

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Category

Geometries

Published on

29 June 2023

Figure	Formulas
Triangle	Perimeter sum of sides (scalene) oblique sides for 2 plus base (isosceles) side for 3 (equilateral) Area base x height and divided product 2
Trapezium	Perimeter Minor base plus major base plus oblique side 1 plus oblique side 2 (scalene) Minor base plus major base plus height side plus oblique side (rectangle) Oblique side for 2 plus minor base plus major base (isosceles) Area Sum of the minor base and major base multiplied by the height and divided by 2
Rectangle	Perimeter Base for 2 plus height for 2 Area Base multiplied for height
Square	Perimeter Side for 4 Area Side by side
Rhombus	Perimeter Side for 4 Area Minor diagonal by major diagonal and divided product 2
Pentagon	Perimeter Side for 5 Area Perimeter by apothem and divided product 2
Hexagon	Perimeter Side for 6 Area Perimeter by apothem and divided product 2
Heptagon	Perimeter Side for 7 Area Perimeter by apothem and divided product 2
Octagon	Perimeter Lato per 8 Area Perimetro per apotema e prodotto diviso 2
Circumference	2 for Pigreco per radius (Pigreco = 3.14)
Circle	Area Pigreco by radius by radius (Pigreco = 3.14)

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