Elements of geometry, containing books I and II with exercises and notes (1882)
Smith, J. Hamblin (James Hamblin), 1829-1901 · Toronto : Gage · leaf 59
ight line, to makean angle with a given straight line that shall be equal toa given angle, Ex. 2. Through a given point A draw a straight lineABC, meeting two parallel straight lines in B and C, so thatBC may be equal to a given straight line. F. re LIDS ELEMEXTS. [Book I. Proposition XXXII.… … (J JJ Let ABC be a A. and let one of its sides, BC, be pro-duced to D. Then u-illL iACD= IS ABC, BAC together.XL z s ABC, BJ.C, ACB together=two rt L s. From C draw CE \\ to AB. • I. 31. Then I. •.: BD meets the l!s EC, AB, .-. extr. z ECD=mtr. z ABC. I. 29. And •/ .40meets the lis EC, AB, .. A ACE…
Geometry
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