Heptagon Calculator: Calculate Area, Perimeter & Apothem of 7-Sided Polygons

Calculate Regular Heptagon Properties

Enter the length of one side of the heptagon. (Fill this OR Apothem)
Enter the apothem of the heptagon. (Fill this OR Side Length)

Unlock the geometry of seven-sided polygons with our easy-to-use Heptagon Calculator. Whether you're a student, architect, or designer, accurately determine the area, perimeter, and apothem of any regular heptagon. Simply input the side length or apothem to get instant, precise measurements for your projects and studies.

Formula:

For a regular heptagon, the key properties are calculated using the following formulas:

  • Perimeter (P): `P = 7 × s`
  • Apothem (a): `a = s / (2 × tan(π/7))`
  • Area (A): `A = (7/2) × s × a`

Where:

  • `s` = Side length of the heptagon
  • `a` = Apothem (distance from the center to the midpoint of a side)
  • `π` ≈ 3.14159265359 (mathematical constant Pi)

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