Hatfield, Robert Griffith, 1815-1879. [from old catalog] · New York & London, Wiley and Putnam · leaf 70
140.—Proposition. If to each of two equal angles a thirdangle be added, their sums will be equal. Let ah c and d ef,{Fig. 98,) be equal angles, and the angle, i j k, the one to beadded. Make the angles, gb a and hed, each equal to the givenangle, ij k; then the angle, gb c,will be equal to the… … 141.—Proposition. Triangles that have two of their sidesand the angle contained between them respectively equal, havealso their third sides and the two remaining angles equal; andconsequently one triangle will every way equal the other. Let ah c, {Fig. 99,) and d efhe two given triangles, having…
Carpentry · Architecture
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