Areas Index

# Area of a Dodecagon Formulas & Calculator

The area of a dodecagon can be calculated using the following formula: if you know the perimeter and the apothem.  ## Formula Knowing one Side and the Apothem

If you know the length of one side in a dodecagon and the apothem, you can calculate its area using the following formula:  $$"area" = (p * a)/2$$

Perimeter and Apotem Length

Area result

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### Where:

$$p = "perimeter value"$$
$$a = "apothem: distance from the center to the closest point in the figure"$$

## Dodecagon Definition

A dodecagon is a plane geometric shape or polygon of 12 sides. It also has 12 angles and 12 vertices. The dodecagon can be regular or irregular.

A regular dodecagon has all 12 sides of equal length and equal distance from the center. It looks very symmetrical. All regular dodecagons look the same.

An irregular dodecagon on the other hand can have sides of different shapes and angles. There is a virtually infinite amount of variations for an irregular dodecagon, so that they can all look very different from each other. Despite these differences, they will always have 12 sides.

## Apothem Definition

The apothem it´s the distance between the center of the geometric figure and the closest point in the figure to the center.

## Area Definition

It is the space of the internal surface in a figure, it is limited for the perimeter. Also, the area can be calculated in a plane of two dimensions.

## Formula Definition

It is a representation of a rule or a general principle using letters. (Algebra, A. Baldor)
When describing formulas in plural, it is also valid to say "formulae".

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