Apollonius <Pergaeus>; Lawson, John - The two books of Apollonius Pergaeus, concerning tangencies, as they have been restored by Franciscus Vieta and Marinus Ghetaldus : with a supplement to which is now added, a second supplement, being Mons. Fermat's Treatise on spherical tangencies

Apollonius <Pergaeus>; Lawson, John, The two books of Apollonius Pergaeus, concerning tangencies, as they have been restored by Franciscus Vieta and Marinus Ghetaldus : with a supplement to which is now added, a second supplement, being Mons. Fermat's Treatise on spherical tangencies

Table of Notes

152[12]

Of Data for Right-angled Triangles which have not yet
been conſtructed in general, the vertical angle being
ſuppoſed acute or obtuſe.

☞ The much greater part of theſe problems are purpoſely leſt without any reference.
The Compiler has ſeen an Author from whom Conſtructions to them all may
be derived, but he forbears to name him, in order to leave them as Exerciſes
for young Geometricians.

11
1. H. H x P + P2.
2. H. P2 - n2.
3. H. m2 - P2.
4. H. S±m, or H. s±n.
5. H. S2 + m2, or H. s2 + n2.
6. H. S2 + n2.
7. H. m2 - n2.
8. H. l biſecting A or a. # Univer. Muſeum, July, 1767. - Ladies \\ Diary, 1772, qu. 633, Cor. - Mis. \\ Scient. Curioſa, pag. 196, Cor. II.

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