Mathematics, 18.06.2021 02:20, natalyarenassalgado

Can someone explain in the clearest way possible how to solve this problem and also does it involve using sin cos tan formulas? A sailor judges the distance to a lighthouse by holding a ruler at arm's length and measuring the apparent height of the lighthouse. He knows that the lighthouse is actually 60 feet tall. If it appears to be 3 inches tall when the ruler is held 2 feet from his eye, how far away is it?

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Can someone explain in the clearest way possible how to solve this problem and also does it involve...