es ofSolids, his parallel! betweene 125and 125 meafured in theline of Z,*»«,would be 105 and fuchis the length of the diameter required. The end of the jirfl bookp ^ THE SECOND BOOKE OF THE SECTOR Containing the vfe of the CircularLines. CHAP. I. Of the nature of Sines, Chords, Tangents and… … A femidtde therefore is an arke of 180 gr. G ^z ojm mture cf Smcs And Tangents. A quadrant is an arke of 90^?*. The meafure of an angle is the arke of a cmde, defcribedout of the angular point.,intercepted betweene the fides fuf-ficiently produced. So the meafure of a right angle is alwayes an arke…
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