A circle is a two-dimensional geometric shape where all points are the same distance from a central point.

What is the radius of a circle?

The radius is the distance from the center of the circle to any point on its edge.

How do you calculate the area of a circle?

The area of a circle is calculated using the formula L = π × r², where r is the radius of the circle. π =(~3,14 or 22/7)

How do you calculate the circumference of a circle?

The circumference of a circle is calculated using the formula K = 2 × π × r. π =(~3,14 or 22/7)

Can this tool be used for learning purposes?

Yes. This tool is designed for educational use and helps students understand circle geometry through calculations, visual illustrations, and practice questions.

Is my data stored or sent to a server?

No. All calculations and simulations are performed entirely in your browser. No data is stored or transmitted.

Where can I learn more about circles?

You can learn more from these resources: - [Wikipedia](https://en.wikipedia.org/wiki/Circle) - [Math Is Fun](https://www.mathsisfun.com/geometry/circle.html)

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Circle Calculator (Area & Circumference)

Calculate the area and circumference of a circle using its radius. Includes formulas, visual illustration, and interactive practice questions.

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Circle Calculator (Area & Circumference)