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In cartesian coordinates x = -8.695 and y = -0.776. What is the polar angle theta?

^o.?

In cartesian coordinates x = -2.022 and y = -72.39. What is the polar angle theta?

^o.?

In cartesian coordinates x = -39.39 and y = -43.29. What is the polar angle theta?

^o.?

In cartesian coordinates x = -5.653 and y = 15.53. What is the polar angle theta?

^o.?

In cartesian coordinates x = -37.35 and y = 56.23. What is the polar angle theta?

^o.?

In cartesian coordinates x = 13.79 and y = -2.58. What is the polar angle theta?

^o.?