Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 43
nt angles are represented by the division; thus an angle of20° the chord will be C-20. ^ A- ^ 0€ 01 i////////////iiniiiiim\\\\ Fig. 84. 26 CONSTRUCTION OF GEOMETRICAL PROBLEMS. SIMILAR TRIANGLES. Triangles which are equiangular are similar, and have their homologoussides—that is, their sides…
Mechanical drawing
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