Elements of geometry for the use of schools (1854)
Ireland. Board of National Education · Dublin : A. Thom · leaf 26
The proposition which has been demon- Tm,,?ir —i ■. which have strated in the three preceding articles, may be thes™ ^stated generally in the following terms—any wjajnt*triangles E B C, A B C, G B C, which have the jjm^same base B C. and he between the same pa-rallels E A G, C B H, are equal; that… … C F D B XVIII. I rams wra Among the various rectilineal figures, which?our-sided may bc measured bv the preceding method, iigures, whose «/ X •*!•. nraiidthere arc some which approach rectangles inregularity : such for instance as A B C D,terminated by four sides, each of which isparallel to the…
Geometry
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