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Circle A has a radius of 9 units. Point R lies 5 units away from A....

Circle A has a radius of 9 units. Point R lies 5 units away from A. A chord drawn through R is partitioned by the diameter of A passing through R into two segments, one of which has a length of 7 units. Is the length of the other segment longer or shorter than 7 units? Justify your answer.

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