Practice Example 1 - 9.1.1 | 9. Some Applications of Trigonometry | CBSE 10 Mathematics
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Practice Questions

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Question 1

Easy

What is the tan(45°)?

💡 Hint: Think of the definition of tangent.

Question 2

Easy

If a tower has a height of 10 meters and is viewed from 10 meters away, what is the angle of elevation?

💡 Hint: Use tan(θ) = opposite/adjacent.

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Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What trigonometric function do we use to find the height of a tower via the angle of elevation?

  • Sine
  • Cosine
  • Tangent

💡 Hint: Recall which function deals with opposite and adjacent sides.

Question 2

True or False: The angle of elevation can be greater than 90°.

  • True
  • False

💡 Hint: Think about how angles are defined.

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Challenge Problems

Push your limits with challenges.

Question 1

A lighthouse is situated on a cliff. From a boat 50 meters away, the angle of elevation to the top of the lighthouse is 75°. What is the height of the lighthouse?

💡 Hint: Use the tangent function to find the height.

Question 2

Two towers stand in a city, one is 30 meters tall, while the other tower's angle of elevation from a point 45 meters away is 70°. Find the height of the second tower.

💡 Hint: Set up the tangent ratio for the second tower.

Challenge and get performance evaluation