Pentagon Diagonal Length Calculator

A pentagon has five side and five angles. A polygon's diagonals are line segments from one corner to another, but not the sides. The diagonals of a convex regular pentagon are in the golden ratio to its sides. Below given Pentagon Diagonal Length Calculator calculates the diagonal length of a five-sided pentagon given the value of a side. Just input the side of the pentagon and the calculator will automatically update you with the diagonal value.

length
length
Code to add this calci to your website Expand embed code Minimize embed code

Formula:

D = (1+ √5) / 2) x a Where, D = Pentagon Diagonal Length a = Side Length Pentagon Diagonal Length

Example

A pentagon with one of its side having a length of 12 cm
Pentagon Diagonal Length = (1+ √5) / 2) x 12
= 19.4164 cm


english Calculators and Converters