## The Elements of Geometry: Or, The First Six Books, with the Eleventh and Twelfth, of Euclid |

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A B C A B is equal ABCD altitude base bisected Book centre circle circumference cloth common cone Const contained Corollary cylinder definition demonstration described diagonal diameter divided double draw drawn Edition equal equal angles equiangular equimultiples Exercise extremities fore four fourth given straight line greater half Illustrated inscribed join less magnitudes manner meet multiple parallel parallelogram parallelopiped pass perpendicular plane polygon prism PROBLEM produced PROP proportionals proposition proved pyramid ratio reason rectangle rectangle contained rectilineal figure remaining angle right angles segment shown sides similar solid solid angle sphere square straight line A B taken THEOREM third touch triangle vertex Vols Wherefore whole