Andhra Pradesh SSC (Class 10) Introduction to Trigonometry — practice questions — page 3

Explore 61 free Introduction to Trigonometry questions in Andhra Pradesh SSC (Class 10) Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Introduction to Trigonometry questions and exercises with answers

Showing questions 61–61 of 61.

A man on a 10 m cliff observes a boat at an angle of depression of 30 degrees. The distance of the boat from the foot of the cliff isRead the answer and worked solution →

Worked practice questions

A man on a 10 m cliff observes a boat at an angle of depression of 30 degrees. The distance of the boat from the foot of the cliff is

10 m
10 (square root of 3) m
20 m
5 (square root of 3) m

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Correct answer: B. 10 (square root of 3) m

1. tan(30) = 10 / d. 2. d = 10 / tan(30) = 10 × (square root of 3) = 10 (square root of 3). 3. Hence the boat is 10 (square root of 3) m away. _Source: syllabus Mathematics, Ch 9 "Some Applications of Trigonometry", §9.2_

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