



 
I drew a diagram of the problem on the right. We want AE. First, note that AE = AB tan 46°. Also, AE = CD. Now, note that BC = AC tan 28°. Also AC = AB. Thus, DB = AB tan 46° + AB tan 28° = 120m. Solve for AB. Use this to solve for AE in our earlier equation. Hope this helps,  


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