Solve for L. T= 2π √L/32
Learning some LaTeX or at least using some brackets where they're needed would be nice to avoid ambiguity. Is your equation $\displaystyle \displaystyle \begin{align*} T = 2\pi \, \frac{\sqrt{L}}{32} \end{align*}$ or $\displaystyle \displaystyle \begin{align*} T = 2\pi\, \sqrt{\frac{L}{32}} \end{align*}$?