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A ship has to cross a sea by making an angle of 30° and with a distance of 200 meters to reach the shore then find the width of the sea.(a) 300 meters(b) 100 meters(c) 110 meters(d) 50 metersI got this question in an internship interview.My enquiry is from Trigonometry Application in division Trigonometry Application of Mathematics – Class 10

Answer» CORRECT ANSWER is (B) 100 meters

Explanation: The WIDTH of the river is BC in the figure.

sin 30° = \(\frac {BC}{AC}\)

\( \frac {1}{2} = \frac {BC}{200}\)

BC = 100 meters


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