Answer:
A. not enough information
Step-by-step explanation:
Due to the lack of information, there are infinite possible answers. We only know the kind of geometric form QRST is and that two of its sides (ST and TQ) have the same length. Therefore, if for example, if TQ = 5 units length, then, ST = 5, but we have no idea how long TQ is, or how to calculate its length.
