In the Rhomboides, the base is 64.35/129: The heigh 16. Therefore the solidity is 1028.44/129.
The same is the geodesy of a trapezium, as in these examples: The surface of the first is 198: The solidity 192.1/2.
The surface of the second is 158.3/49: The solidity is 91.29/49.
The same shall be also the geodesy of a many flatted Prisma: As here thou seest in an Octoedrum of a sexangular base: The surface shall bee 762.6/11: The solidity 1492.4/11.
And from hence also may the capacity or content of vessels or measures, made after any manner of plaine solid bee esteemed and judged of as here thou seest. For here the plaine of the sexangular base is 41.1/7; (For the ray, by the [9 e xviij], is the side:) and the heighth 5, shall be 205.5/7. Therefore if a cubicall foote doe conteine 4 quarters, as we commonly call them, then shall the vessell conteine 822.6/7 quartes, that is almost 823 quartes.