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Long Ridge Length of Great Icosahedron Given Volume Calculator

Formula Used:

\[ l_{Ridge(Long)} = \frac{\sqrt{2} \cdot (5 + 3\sqrt{5})}{10} \cdot \left( \frac{4V}{25 + 9\sqrt{5}} \right)^{\frac{1}{3}} \]

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1. What is Long Ridge Length of Great Icosahedron?

The Long Ridge Length of Great Icosahedron is the length of any of the edges that connects the peak vertex and adjacent vertex of the pentagon on which each peak of Great Icosahedron is attached. It is a crucial geometric parameter in understanding the structure of this complex polyhedron.

2. How Does the Calculator Work?

The calculator uses the mathematical formula:

\[ l_{Ridge(Long)} = \frac{\sqrt{2} \cdot (5 + 3\sqrt{5})}{10} \cdot \left( \frac{4V}{25 + 9\sqrt{5}} \right)^{\frac{1}{3}} \]

Where:

Explanation: This formula derives from the geometric properties of the Great Icosahedron, relating the long ridge length to the volume through mathematical constants and cube root relationships.

3. Importance of Long Ridge Length Calculation

Details: Calculating the long ridge length is essential for geometric analysis, architectural applications, and understanding the spatial properties of the Great Icosahedron. It helps in determining the precise dimensions and proportions of this complex polyhedral structure.

4. Using the Calculator

Tips: Enter the volume of the Great Icosahedron in cubic meters. The volume must be a positive value greater than zero. The calculator will compute the corresponding long ridge length based on the mathematical relationship between volume and edge length.

5. Frequently Asked Questions (FAQ)

Q1: What is a Great Icosahedron?
A: The Great Icosahedron is one of the four Kepler-Poinsot polyhedra, consisting of 20 triangular faces that intersect each other, creating a complex star polyhedron.

Q2: How is the long ridge length different from other edges?
A: The long ridge specifically refers to the edges connecting peak vertices to adjacent vertices of the pentagonal bases, which are typically longer than other edges in the structure.

Q3: What units should I use for volume input?
A: The calculator expects volume in cubic meters, but you can use any consistent unit system as long as the output length is interpreted in the same unit system.

Q4: Can this formula be used for any polyhedron?
A: No, this specific formula applies only to the Great Icosahedron due to its unique geometric properties and mathematical relationships.

Q5: What is the typical range of long ridge lengths?
A: The long ridge length varies depending on the volume, but for practical applications, it typically ranges from centimeters to several meters for scaled models.

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