Circle Calculator. Formulas

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Jul 3, 2025
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Circumference of a circle APP

To calculate the circumference of a circle, all you need to know is:
- diameter,
- radius,
- area of ​​a circle,
- the diagonal of the inscribed rectangle,
- the side of the circumscribed square,
- sides and area of an inscribed triangle,
are the area and half-perimeter of the circumscribed triangle,
side of an inscribed regular polygon.
The purpose of this application is the education of cognitive interest in mathematics.
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