CHAP. XLVI. To finde a side by knowing two angles, and the side inclosed by them.
THus in the triangle ZPS, having the angles at Z and P, with the side intercepted ZP, we may finde the
The description and use of the universall quadrat.: By which is performed, with great expedition, the whole doctrine of triangles, both plain and sphericall, two severall wayes with ease and exactness. Also the resolution of such propositions as are most usefull in astronomie, navigation, and dialling. By which is also performed the proportioning of lines and superficies: the measuring of all manner of land, board, glasse; timber, stone. &c. / By Thomas Stirrup, Philomathemat.
About this Item
- Title
- The description and use of the universall quadrat.: By which is performed, with great expedition, the whole doctrine of triangles, both plain and sphericall, two severall wayes with ease and exactness. Also the resolution of such propositions as are most usefull in astronomie, navigation, and dialling. By which is also performed the proportioning of lines and superficies: the measuring of all manner of land, board, glasse; timber, stone. &c. / By Thomas Stirrup, Philomathemat.
- Author
- Stirrup, Thomas.
- Publication
- London :: Printed by R. & W. Leybourn, for Tho. Pierrpont, at the Sun in Pauls Church-yard,
- 1655.
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- Subject terms
- Astronomy
- Dialing
- Geometry
- Navigation
- Trigonometry
- Link to this Item
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http://name.umdl.umich.edu/A93912.0001.001
- Cite this Item
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"The description and use of the universall quadrat.: By which is performed, with great expedition, the whole doctrine of triangles, both plain and sphericall, two severall wayes with ease and exactness. Also the resolution of such propositions as are most usefull in astronomie, navigation, and dialling. By which is also performed the proportioning of lines and superficies: the measuring of all manner of land, board, glasse; timber, stone. &c. / By Thomas Stirrup, Philomathemat." In the digital collection Early English Books Online 2. https://name.umdl.umich.edu/A93912.0001.001. University of Michigan Library Digital Collections. Accessed June 10, 2024.
Pages
Page 139
side PS, for having by the 23 Chap. let down the per∣pendicular PB, we have two right angles PBZ, and PBS, then may we by the 29, or 37, or 38, Chap. finde the angle BPZ, which added to the angle ZPS giveth the angle BPS, then with this angle BPS, and the perpen∣dicular BP, we may finde the base PS, according to the 35 Chapter.