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modules The total body surface area, or BSA, of a human is difficult to calculate. There are various models that estimate BSA based on a person's weight and height. One simpler model is BSA wh 3600 where w - weight in kg and h = height in cm. a. Using this model, estimate the height of a person who weighs 71 kg and whose BSA is 1.9. Round your answer to the nearest cm. h Number cm b. Using this model, estimate the weight of a person who is 163 cm tall and whose BSA is 2.2. Round your answer to the nearest kg. W- Number kg