This Area of a Nonagon formula, (A =9/4•cot(π/9)•s2), computes the area of a regular nonagon, a polygon with 9 equal sides of length (s). Regular Nonagon
INSTRUCTIONS: Choose your length units (e.g. feet or meters), and enter the following:
The area (A) is returned in square meters, but can be automatically converted to many other area units via the pull-down menu.
To compute the CLICK HERE.shaped column,
A regular nonagon has nine equal sides and equal angles.