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More Lessons for PreCalculus

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Videos, worksheets, games and activities to help PreCalculus students learn about polar coordinates.

How to describe a point's location with polar coordinates, and how to convert from polar coordinates to rectangular coordinates.

Introduction to Polar Coordinates

Another form of plotting positions in a plane is using polar coordinates. We are used to using rectangular coordinates, or xy-coordinates. Polar coordinates use a graphing system based on circles, and we specify positions using the radius and angle of a point on a circle centered at the origin. We must also know how to convert from rectangular to polar coordinates and from polar coordinates to rectangular.

This video introduces polar coordinates.

Distinguish between rectangular coordinate system and polar coordinate system.

Plot points using the polar coordinate system.

How to graph a 'polar point' as well as how to convert from Cartesian to polar form and vice-versa.

This video gives the formulas to convert between polar and rectangular coordinates. It shows a few examples of going from rectangular to polar form.

This video gives the formulas to convert between polar and rectangular coordinates. It shows a few examples of going from polar to rectangular form.

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