Convert the polar equation theta=26pi/3 to rectangular form

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Brendan Angle theta=26pi/3=81.6818/3=27.2272 degrees=theta. . In rectangular form we cold state slope of line Y/X and Tangent of 27.2272 degrees is .4086576; Therefore we can say :.4086576=Y/X and Y= 0.4086576X. in cartesian coordinates. This is to say That for any value X, Y will equal 0.4066576 of the X value and will have a slope of 27.2272 degrees same as polar theta.
Hope this helps. Good Luck. You will see this more clearly if you put it on a graph