This section is from the book "The Tinman's Manual And Builder's And Mechanic's Handbook", by Isaac Ridler Butt. Also available from Amazon: The Tinman's Manual And Builder's And Mechanic's Handbook.
No. of sides.
The tabular surface multiplied by the square of one of the boundary lines equals the surface required; or,
The tabular solidity multiplied by the cube of one of the boundary lines equals the solidity required.