$$A B = A C L A = 60$$
$AB=CLA^{2}\text{ and }CLA^{2}=60$
$L=\frac{B^{2}}{60C}$
$A=\frac{60}{B}\text{ and }C\neq 0\text{ and }B\neq 0$
$C=\frac{B^{2}}{60L}$
$A=\frac{60}{B}\text{ and }L\neq 0\text{ and }B\neq 0$