Elements of geometry, containing books I and II with exercises and notes (1882)
Smith, J. Hamblin (James Hamblin), 1829-1901 · Toronto : Gage · leaf 41
adrilateral is greater thanhalf the perimeter of the quadrilateral. Ex. 4.. If one side of a triangle be bisected, the sum of thetwo other sides shall be more than double of the line joiningthe vertex and the point of bisection.s. E. 3 34 EUCLIDS ELKMKXTS. [Book I. Proposition XXI. Theorem. If,… … Let ABC be a A, and from D, a pt. in the A, draw st.lines to B and C. Then idll BD, DC together he less than BA, AC,hut L BDCidll he greater than l BAC. Produce BD to meet AC in E. Then BA, AE are together greater than BE. I. 20. Add to each EC.Then BA, AC are together greater than BE, EC.Again,…
Geometry
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