Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 45
Fig. 6. —A PlaneTriangle. … Fig. 7.—Two Similar PlaneTriangles. stance, if you know the three sides a, b, c, you can make one triangle,and only one, with these sides. If you only know the three anglesyou can make any number of triangles with three such angles. Allof them will have the same shape, but they will have different…
Astronomy
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