Polar Coordinates الاحداثيات القطبية | Coordinate System | Angle

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  (r, θ ) You are familiar with plotting with a rectangular coordinate system. We are going to look at a new coordinate system called the polar coordinate system. The center of the graph is called the pole. Angles are measured from the positive x axis. Points are represented by a radius radius and an angle (r, To θ ) point plot the  π  5,   4 First find the angle Then move out along the terminal side 5 A negative angle would be measured clockwise like usual. 3π    3,−  4   To
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    ( r  , θ  )     You are familiar withplotting with a rectangular coordinate system.We are going to look at anew coordinate systemcalled the polar coordinate system.    The center of the graph iscalled thepole.Angles are measured fromthe positive  x  axis.Points arerepresented by aradius and an angle ( r  , θ  )   radiusangleTo plot the point       4,5 π   First find the angleThen move out alongthe terminal side 5    A negative angle would be measured clockwise like usual.To plot a pointwith a negativeradius, find theterminal side of the angle but thenmeasure from thepole in thenegative directionof the terminalside.      − 43,3 π        − 32,4 π  
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