Triangles XYZ and RST are similar, where $\angle X$ corresponds to $\angle R$, $\angle Y$ corresponds to $\angle S$, and $\angle Z$ corresponds to $\angle T$. If $△XYZ$ is a right triangle with the right angle at $Y$, and the measure of $\angle X$ is $35^{\circ }$, what is the measure of $\angle T$?