The elements of Euclid : viz, the first six books, together with the eleventh and twelfth : the errors, by which Theon, or others, have long ago vitiated these books, are corrected, and some of Euclid's demonstrations are restored : also, The book of Euclid's data, in like manner corrected (1834)
Euclid, Euclid, Simson, Robert, 1687-1768 · Philadelphia : Desilver & Thomas · leaf 94
, FM per-pendiculars to the straight lines AB,BC, CD, DE, EA; and because theangle HGF is equal to KCF, and the C K ^ D right angle FHC equal to the right angle FKC; in the trianglesFHC, FKC there are two angles of one equal to two angles of theother, and the side FC, which is opposite to one of… … 92 . THE ELEMENTS OF EUCLID. BOOK IV. monstrated that FL, FM, FG are each of them equal to FH, orFK; therefore the five straic^ht lines FG, FH, FK, FL, FM areequal to one another: wherefore the circle described frora thecentre F, at the distance of one of these five, shall pass throughthe…
Mathematics, Greek · Geometry · Trigonometry
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