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Circumradius of Dodecagon given Area Calculator

Formula Used:

\[ r_c = \frac{\sqrt{6} + \sqrt{2}}{2} \times \sqrt{\frac{A}{3 \times (2 + \sqrt{3})}} \]

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1. What is the Circumradius of Dodecagon?

The circumradius of a dodecagon is the radius of a circumcircle that touches all twelve vertices of the dodecagon. It is an important geometric property that helps in understanding the spatial dimensions of the polygon.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ r_c = \frac{\sqrt{6} + \sqrt{2}}{2} \times \sqrt{\frac{A}{3 \times (2 + \sqrt{3})}} \]

Where:

Explanation: This formula calculates the circumradius based on the area of the dodecagon, using mathematical constants and square root functions to derive the result.

3. Importance of Circumradius Calculation

Details: Calculating the circumradius is essential for various geometric applications, including construction, design, and understanding the properties of regular polygons in mathematics and engineering.

4. Using the Calculator

Tips: Enter the area of the dodecagon in square meters. The value must be positive and greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is a dodecagon?
A: A dodecagon is a polygon with twelve sides and twelve angles. When regular, all sides and angles are equal.

Q2: How is the circumradius related to the area?
A: The circumradius can be derived from the area using specific geometric formulas that account for the regular structure of the dodecagon.

Q3: Can this calculator be used for irregular dodecagons?
A: No, this formula is specifically designed for regular dodecagons where all sides and angles are equal.

Q4: What units should I use for area?
A: The calculator expects area in square meters, but you can use any consistent unit as long as you interpret the circumradius in the same unit of length.

Q5: Are there other ways to calculate circumradius?
A: Yes, circumradius can also be calculated from the side length using different formulas, but this calculator uses the area-based approach.

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