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Volume of Truncated Dodecahedron given Midsphere Radius Calculator

Formula Used:

\[ V = \frac{5}{12} \times (99 + 47\sqrt{5}) \times \left( \frac{4r_m}{5 + 3\sqrt{5}} \right)^3 \]

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1. What is the Volume of Truncated Dodecahedron?

The Volume of Truncated Dodecahedron is the total quantity of three dimensional space enclosed by the surface of the Truncated Dodecahedron. It is a key geometric property used in various mathematical and engineering applications.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ V = \frac{5}{12} \times (99 + 47\sqrt{5}) \times \left( \frac{4r_m}{5 + 3\sqrt{5}} \right)^3 \]

Where:

Explanation: The formula calculates the volume based on the midsphere radius, incorporating the mathematical constant √5 which is inherent to the dodecahedron's geometry.

3. Importance of Volume Calculation

Details: Accurate volume calculation is crucial for material estimation, structural analysis, and understanding the geometric properties of truncated dodecahedrons in various applications including architecture and 3D modeling.

4. Using the Calculator

Tips: Enter the midsphere radius in meters. The value must be positive and valid. The calculator will compute the volume using the precise mathematical formula.

5. Frequently Asked Questions (FAQ)

Q1: What is a truncated dodecahedron?
A: A truncated dodecahedron is an Archimedean solid obtained by truncating the vertices of a regular dodecahedron, resulting in 20 regular triangular faces and 12 regular decagonal faces.

Q2: What is the midsphere radius?
A: The midsphere radius is the radius of the sphere that is tangent to all edges of the truncated dodecahedron.

Q3: Why does the formula contain √5?
A: The square root of 5 appears naturally in the geometry of regular dodecahedrons and their truncated versions, relating to the golden ratio φ = (1+√5)/2.

Q4: What are typical applications of this calculation?
A: This calculation is used in crystallography, architectural design, game development, and any field dealing with complex polyhedral structures.

Q5: How accurate is this calculation?
A: The calculation is mathematically exact when using the formula. The precision depends on the accuracy of the input value and the computational precision of the calculator.

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