This Volume of a Nonagon formula, (Vnonagon=9/4•cot(π/9)•s2•h), computes the volume a column with a regular nonagon face, a polygon with 9 equal sides of length (s) and a height (h). Regular Nonagon
INSTRUCTIONS: Choose units and enter the following:
Nonagon Volume (V): The volume will be returned in cubic meters. However, the volume can be automatically converted into many other units via the pull-down menu.
For the CLICK HERE.,
A regular nonagon has nine equal sides and equal angles.