A boat is heading towards a lighthouse, where Riley is watching from a vertical distance of 120 feet above the water. Riley measures an angl

Question

A boat is heading towards a lighthouse, where Riley is watching from a vertical distance of 120 feet above the water. Riley measures an angle of depression to the boat at point A to be 18 degrees . At some later time , Riley takes another measurement and finds the angle of depression to the boat (now at point B) to be 65 degrees . Find the distance from point A to point B. Round your answer to the nearest foot if necessary .

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Bơ 4 years 2021-07-28T22:19:27+00:00 1 Answers 252 views 0

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  1. vankhanh
    1
    2021-07-28T22:20:28+00:00
    Reply

    Answer:

    313 ft

    Step-by-step explanation:

    It’s hard to explain because its geometry, but there will be a right triangle with angle of 72 and another with angle of 25. do tan72 * 120 – tan25 * 120

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