BRITANNIC A The Second Part of the Second Book. Of Spherical Triangles. … t*m^~->* CHAP. I. Aving done with Plain triangles, we come nexttotfic dimenfiocof the Spherical. i A Spherical triangle, is that which is defcribedon the furfaceof the Sphere. 2 The (ides of a Spherical triangle arc arches of three of thegreateft circles of the Sphere, mutually intcrfecting each…
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