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4. Three people are watching a hot air balloon travel over their town. At a certain point in time,one person stands directly below the balloon, and the others look at

it at certain angles. In the following image, A, B, and Care people, and D is the balloon. Person C is 384m directly below the balloon, Person B is 200m away from Person C, and the angle between Person A, the balloon, and Person B is 33°. How far is Person A from the hot air balloon?

Fig: 1

Fig: 2