Insphere Radius of Dodecahedron Calculator

Calculate Insphere Radius



Formula

The formula to calculate the Insphere Radius of Dodecahedron is:

\[ ri = \sqrt{\frac{25 + 11\sqrt{5}}{10}} \cdot \frac{le}{2} \]

Definition

Insphere Radius of Dodecahedron is the radius of the sphere that is contained by the Dodecahedron in such a way that all the faces just touch the sphere. Edge Length of Dodecahedron is the length of any of the edges of a Dodecahedron or the distance between any pair of adjacent vertices of the Dodecahedron.

Example Calculation

Let's assume the following values:

Using the formula:

\[ ri = \sqrt{\frac{25 + 11\sqrt{5}}{10}} \cdot \frac{10}{2} = 11.1351636441161 \]

The Insphere Radius is 11.1351636441161 Meters.

Conversion Chart

Edge Length (Meters) Insphere Radius (Meters)
9 10.021647279704462
9.5 10.578405461910265
10 11.135163644116069
10.5 11.691921826321872
11 12.248680008527675