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For polar coordinates, a point has coordinates (r, θ), where r is its distance from the pole (similar to the origin), and θ is the angle formed from the polar axis (right side of horizontal line). 

To convert polar coordinates to cartesian coordinates, we use
for x coordinate,  x = r cosθ
for y coordinate, y = r sinθ
For x coordinate --> x = r cosθ
for y coordinate --> y = r sinθ