Elements of geometry, containing books I and II with exercises and notes (1882)
Smith, J. Hamblin (James Hamblin), 1829-1901 · Toronto : Gage · leaf 60
riangle be produced to meet ; shew that theywill contain an angle equal to an exterior angle at the base ofthe triangle. Ex. 5. If the straight Ime bisecting the external angle of atriangle be parallel to the base ; prove that the triangle isisosceles. The following Corollaries to Prop. 32 were… … Let ABODE be any rectilinear figure. Take any pt. F within the figure, and from F draw theSt. lines FA, FB, EC, FD, FE to the angular pts. of the figure Then there are formed as many z s as the figure hassides. The three z s in each of these As together=two rt. z s, ..all the z s in these as…
Geometry
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