[Ads-l] Antedating of "complete polygon"

[John Doe]

OED 1890

1786 J. Robertson The Elements of Navigation The work here described for
one front is to be applied to every front of the polygon ; and it is
recommended to the learner, that he should apply the precepts given for one
front to a complete polygon[.]
https://www.google.com/books/edition/The_Elements_of_Navigation/B8w47utWjGQC?hl=en&gbpv=1&dq=%22complete+polygon%22&pg=RA2-PA28&printsec=frontcover

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