Elements of geometry : containing books I to III (1886)
Smith, J. Hamblin · Toronto : W.J. Gage · leaf 168
nd . BD, if produced, is a diamet.•. each of the area /•.!, /■. is lea I ban a semicircle,and .. arc HA —arc BC.Thus the arc .1 Bl bi ected in B. Q. A T. Ex. If, from any pninl in tln> diameter <>f a seiiiicibe drawn two straight lines to the circumference,to tl:- rcnmfi rence, and the… … Let ABC be a • , 0 its centre, and BC a diameter. 1 AC, dividing the 1 into the a /.. ADC. Join BA, AD, DC, AO.T/i . . ■ .First, v BO=AO, :.lBAO= - ABO; I. .\. .-. _ <m,i = •-.;,;, L BAO; I. 32. and v CO=*AO .. t CAQ= l ACQ ; I. a. .. i £CU = twic. _ C40; I. 3 .\ sura of L s < I = t wice sum…
Geometry
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