# Difference between revisions of "Dodecagon"

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A regular dodecagon can be seen below: | A regular dodecagon can be seen below: | ||

− | + | <asy> | |

for(int i = 0; i <= 11; ++i) { | for(int i = 0; i <= 11; ++i) { | ||

draw(dir(360/12*i)--dir(360/12*(i + 1))); | draw(dir(360/12*i)--dir(360/12*(i + 1))); | ||

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draw(A--G); | draw(A--G); | ||

draw(Circle(O,1)); | draw(Circle(O,1)); | ||

− | + | </asy> | |

The area of a regular dodecagon can be calculated by the formula <math>3R^2</math>, where <math>R</math> is the circumradius of the dodecagon. In this case, <math>R</math> would be <math>OA</math>. | The area of a regular dodecagon can be calculated by the formula <math>3R^2</math>, where <math>R</math> is the circumradius of the dodecagon. In this case, <math>R</math> would be <math>OA</math>. | ||

## Revision as of 12:05, 15 June 2018

A **dodecagon** is a 12-sided polygon. The sum of its internal angles is .

A regular dodecagon can be seen below:

The area of a regular dodecagon can be calculated by the formula , where is the circumradius of the dodecagon. In this case, would be .

## See Also

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