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A boat going parallel to shore spots a lighthouse ahead on shore. The angle of the line from lighthouse to boat is 30 degrees. The boat sails 3mi, and now angle is 90. How far offshore is boat?

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    Draw it out first. Can you see how the boat's path in the problem forms a triangle?2012-09-21
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    30 degrees between the line and the shore, presumably?2012-09-21

4 Answers 4