What is QR? Enter your answer in the box. units The figure shows what appears to be obtuse triangle Q R S with obtuse angle R. Point T is on side Q R. Single tick marks pass through segments Q T and T R. Point U is on side R S. Double tick marks pass through segments R U and U S. Point V is on side S Q. Triple tick marks pass through segments S V and V Q. Segment T V is drawn and has length 5.4. Segment U V is drawn and has length 6.