Help with square root

ow can I find the square root that equals to -0.5773502691899182?

\(Square -0.5773502691899182 \ and \ draw \ the \ square \ root\)

\((-0.5773502691899182)^2=0.33\overline3=\frac{1}{3}\)

\(The \ square \ root \ that \ equals\)

 \(to -0.5773502691899182\ is \ \Large\ -\sqrt{\frac{1}{3}}\)

  !