You stand at point C on a horizontal ground and observe poles AB and DE, of different heights. A, Cand E are in the same horizontal plane. From point C angles of inclination to the top of pole B and Dare 25,51 degrees and 18,31 degrees respectively. You are 18m from the base of pole AB the heightof pole DE is 7m. The distance from point C where you are standing to the top of pole D. .2 The stance from point C, where you are standing to the top of pole B The distance between the tops of the poles, that is the length of AB if angle BCD =42.26°.

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