The Elements of Geometry: Or, The First Six Books, with the Eleventh and Twelfth, of Euclid |
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Σελίδα 128
The sides about the equal angles of equiangular triangles are proportionals ; and those which are opposite to the equal angles are homologous sides , that is , are the antecedents or consequents of the ratios .
The sides about the equal angles of equiangular triangles are proportionals ; and those which are opposite to the equal angles are homologous sides , that is , are the antecedents or consequents of the ratios .
Σελίδα 171
and the angle at B by the three plane angles F B G , FB H , and HBG ; let the angle C A D be equal to the angle F B G , the angle CA E to the angle FBH , and the angle EAD to the angle HBG . The planes in which the equal angles are have ...
and the angle at B by the three plane angles F B G , FB H , and HBG ; let the angle C A D be equal to the angle F B G , the angle CA E to the angle FBH , and the angle EAD to the angle HBG . The planes in which the equal angles are have ...
Σελίδα 185
If , from the vertices of two equal plane angles , there be drawn two straight lines elevated above the planes in which the angles are , and containing equal angles with the sides of those angles , each to each ; and if in the lines ...
If , from the vertices of two equal plane angles , there be drawn two straight lines elevated above the planes in which the angles are , and containing equal angles with the sides of those angles , each to each ; and if in the lines ...
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