Analytic geometry, for technical schools and colleges (1897)
Lambert, Preston Albert, 1862-1925 · New York, Macmillan · leaf 62
PDOP PDOP angle ^lOP in circular measure is Hence, if the radius OA is the linearunit, the line PD is a geometric rep-resentative of sinvlOP, the arc APa geometric representative of theangle AOP. The measure of theangle ylOPis 1 when arc AP= OP;that is, the unit of circular measureis the angle at… … radian is ecpiivalent to 360 r°.3 -. 48 ANALYTIC GEOMETRY Calling angles generated by the anti-clockwise motion ofOA positive, angles generated by the clockwise motion of OAnegative, there corresponds to every value of the abstract num-ber X a determinate angle. Unless otherwise specified, angles…
Geometry, Analytic
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