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User:Hans G. Oberlack/FS V

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The Quartercircle as base element.

General case

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Segments in the general case

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The radius of the quarter circle

Perimeter in the general case

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Perimeter of base quarter circle

Areas in the general case

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Area of the base quarter circle

Centroids in the general case

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By definition the centroid points of a base shape are . Relatively is the lower left point of the base of the quarter circle at:

Normalised case

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Area in the normalised case

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In the normalised case the area of the base quarter circle is set

Segments in the normalised case

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Since

Perimeter in the normalised case

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Perimeter of base quarter circle

Centroids in the normalised case

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Positions of the lower left corner of base quarter circle:

Identifying number

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Apart of the base element there is no other shape allocated. Therefore the integer part of the identifying number is 0.
The decimal part of the identifying number is the decimal part of the sum of the perimeters and the distances of the centroids in the normalised case.



So the identifying number is: