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From a boat 160m out at sea the angle of elevation to the coast is 18 degrees. The angle of elevation to the top of a lighthouse on the coast is 22 degrees. Find the height of the lighthouse. 

 Oct 21, 2020
edited by Guest  Oct 21, 2020
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160 (tan 22 - tan 18)  meters = .......... m

 Oct 22, 2020

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