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In rectangle $WXYZ$, $A$ is on side $\overline{WX}$, $B$ is on side $\overline{YZ}$, and $C$ is on side $\overline{XY}$. If $AX = 2$, $BY = 24$, $\angle ACB= 90^\circ$, and $CY = 3 \cdot CX$, then find $AB$.

what the since when did point d exist