whose ij. corners about the grounde line, are eche of theym double to the other corner.
At no point in this or the accompanying book does the author show how to divide a circle into five.
Example.
A.B.C. is the circle, whiche I haue deuided into fiue equal portions. And from one of the prickes (which is A,) I haue drawẽ ij. lines, A.B. and B.C, whiche are drawen to the third and iiij. prickes. Then draw I the third line C.B, which is the grounde line, and maketh the triangle, that I would haue, for the ãgle C. is double to the angle A, and so is the angle B. also.
[ THE XXXVIII. CONCLVSION.]
To make a cinkangle of equall sides, and equall corners in any circle appointed.
Deuide the circle appointed into fiue equall partes, as you didde in the laste conclusion, and drawe ij. lines from euery pricke to the other ij. that are nexte vnto it. And so shall you make a cinkangle after the meanynge of the conclusion.
Example.
Yow se here this circle A.B.C.D.E. deuided into fiue equall portions. And from eche pricke ij. lines drawen to the other ij. nexte prickes, so from A. are drawen ij. lines, one to B, and the other to E, and so from C. one to B. and an other