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Edge Length of Pentagon given Diagonal Calculator

Formula Used:

\[ Edge\ Length\ of\ Pentagon = \frac{Diagonal\ of\ Pentagon \times 2}{1 + \sqrt{5}} \]

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1. What is the Edge Length of Pentagon?

The edge length of a pentagon is the length of one of the five equal sides of a regular pentagon. It is a fundamental measurement used in geometry and various practical applications.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Edge\ Length = \frac{Diagonal \times 2}{1 + \sqrt{5}} \]

Where:

Explanation: This formula calculates the edge length of a regular pentagon when the diagonal length is known, using the mathematical relationship between these two measurements.

3. Importance of Edge Length Calculation

Details: Calculating the edge length from the diagonal is essential in geometry, architecture, and design where pentagonal shapes are used. It helps in determining the proper dimensions and proportions of pentagonal structures.

4. Using the Calculator

Tips: Enter the diagonal length of the pentagon in meters. The value must be positive and valid.

5. Frequently Asked Questions (FAQ)

Q1: What is a regular pentagon?
A: A regular pentagon is a five-sided polygon where all sides are equal in length and all interior angles are equal (108 degrees each).

Q2: How is the diagonal defined in a pentagon?
A: In a pentagon, a diagonal is a straight line connecting two non-adjacent vertices.

Q3: Can this formula be used for irregular pentagons?
A: No, this formula applies only to regular pentagons where all sides and angles are equal.

Q4: What are practical applications of pentagon calculations?
A: Pentagon calculations are used in architecture, design, military symbols, and various engineering applications.

Q5: How accurate is this calculation?
A: The calculation is mathematically precise for regular pentagons, as it's derived from geometric principles and the golden ratio relationship.

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