November 2, 2009
How far did the ship travel between the two sightings?
jessicaxoxoxox asked:
The officer of a ship approaching shore calculates the angle of elevation from the ship to the top of a lighthouse on shore to be 4.6 degrees. A short time later, the officer calculates the angle of elevation to the same lighthouse to be 7.8 degrees. The officer knows the lighthouse to be 225 feet tall.
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The officer of a ship approaching shore calculates the angle of elevation from the ship to the top of a lighthouse on shore to be 4.6 degrees. A short time later, the officer calculates the angle of elevation to the same lighthouse to be 7.8 degrees. The officer knows the lighthouse to be 225 feet tall.
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Filed under Lighthouses by admin
Comments on How far did the ship travel between the two sightings? »
ship travelled distance
= (cot 4.6deg — cot7.8deg) 225 ft
= ………………….. now you calculate, please as I have no calculator.