# Understanding Rectangular and Polar Coordinates

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This Demonstration considers the rectangular and polar coordinates of a point at the center of an orange circle. Drag the orange circle to change its location on the - plane. Select "rectangular coordinates" to see or hide the rectangular coordinates of the point . Select "polar coordinates" to see or hide the polar coordinates of the point . The angle is in degrees, measured counterclockwise from the positive axis. You can drag the table that contains the data.

Contributed by: Whasington Silvestre (June 13)

(Murray State University, Austin Peay State University, University of Puerto Rico, Autonomous University of Santo Domingo)

Open content licensed under CC BY-NC-SA

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