How do I convert the polar equation $r = 10$ $r=10$ to its Cartesian equivalent?

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Answer 1 · 2014-10-02T21:11:25

$r = 10$ $r=10$

$\sqrt{x^{2} + y^{2}} = 10$ $sqrt(x^2+y^2)=10$

square both sides

${(\sqrt{x^{2} + y^{2}})}^{2} = 10^{2}$ $(sqrt(x^2+y^2))^2=10^2$

$x^{2} + y^{2} = 100$ $x^2+y^2=100$

How do I convert the polar equation r=10r=10r=10 to its Cartesian equivalent?