AHSME 1952 Problem 29

In a circle of radius $5$ units, $CD$ and $AB$ are perpendicular diameters. A chord $CH$ cutting $AB$ at $K$ is $8$ units long. The diameter $AB$ is divided into two segments whose dimensions are: $\textbf{(A)}\ 1.25, 8.75 \textbf{(B)}\ 2.75,7.25 \textbf{(C)}\ 2,8 \textbf{(D)}\ 4,6 \textbf{(E)}\ \text{none of these}$