Question 1119021
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(1) You haven't said where point C is.  It would make sense if it were the base of the flagpole; however, it is not our responsibility to guess what required information you have left out in your statement of the problem.<br>
(2) Even if we knew where point C was, we would not be able to answer the question.  You ask for a distance between the two points on the flagpole; but without any information about distances given in the statement of the problem, that kind of question can't be answered.<br>
Re-post your question, giving all required information.