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Midsphere Radius of Dodecahedron given Perimeter Calculator

Midsphere Radius of Dodecahedron Formula:

\[ r_m = \frac{3 + \sqrt{5}}{120} \times P \]

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1. What is the Midsphere Radius of Dodecahedron?

The Midsphere Radius of a Dodecahedron is defined as the radius of the sphere for which all the edges of the Dodecahedron become a tangent line on that sphere. It represents the sphere that is tangent to all the edges of the polyhedron.

2. How Does the Calculator Work?

The calculator uses the Midsphere Radius formula:

\[ r_m = \frac{3 + \sqrt{5}}{120} \times P \]

Where:

Explanation: The formula calculates the midsphere radius based on the total perimeter of the dodecahedron, using the mathematical constant (3 + √5)/120 as the conversion factor.

3. Importance of Midsphere Radius Calculation

Details: Calculating the midsphere radius is important in geometry and 3D modeling for understanding the spatial properties of dodecahedrons. It helps in determining the sphere that touches all edges of the polyhedron, which has applications in various mathematical and engineering fields.

4. Using the Calculator

Tips: Enter the perimeter of the dodecahedron in meters. The value must be positive and greater than zero. The calculator will compute the midsphere radius using the established geometric formula.

5. Frequently Asked Questions (FAQ)

Q1: What is a Dodecahedron?
A: A dodecahedron is a three-dimensional shape with twelve flat faces, each being a regular pentagon. It is one of the five Platonic solids.

Q2: How is Perimeter of Dodecahedron defined?
A: The perimeter of a dodecahedron is the sum of the total distance around all the edges of the dodecahedron.

Q3: What are typical values for Midsphere Radius?
A: The midsphere radius depends on the size of the dodecahedron. For a standard dodecahedron with edge length a, the midsphere radius is approximately 1.309a.

Q4: Can this formula be used for irregular dodecahedrons?
A: No, this specific formula applies only to regular dodecahedrons where all edges are equal and all faces are regular pentagons.

Q5: What are practical applications of this calculation?
A: This calculation is used in geometry, 3D modeling, architectural design, and in various scientific fields where understanding the spatial properties of polyhedrons is important.

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