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Revision Notes

Some Applications of Trigonometry — Revision Notes

CBSE · Class 10 · Mathematics

Some Applications of Trigonometry revision notes for CBSE Class 10 Mathematics: 3 topics in quick points. Part of the CBSE Class 10 Mathematics syllabus.

136 questions40 flashcards8 formulas & key relations5 concepts

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A diagram illustrating the concept of a line of sight, showing an observer's eye and an object, with a line connecting them.
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Key Topics to Revise

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1. Core Ideas and Definitions

  • Line of sight is the line drawn from the eye of an observer to the point in the object viewed by the observer.
  • Angle of elevation is the angle formed by the line of sight with the horizontal when the point being viewed is above the horizontal level.
  • Angle of depression is the angle formed by the line of sight with the horizontal when the point being viewed is below the horizontal level.
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2. Worked Patterns from Standard Problems

  • Example 1 uses tan 60° because the ratio involves the tower height and the distance from its foot.
  • Example 2 uses sin 60° to find the ladder length and cot 60° to find the distance of the ladder foot from the pole.
  • Example 3 adds the observer’s height to the height above eye level.
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3. Key Results to Remember

  • Height of the tower in Example 1 is 15sqrt(3) m.
  • Length of the ladder in Example 2 is 4.28 m.
  • Distance of the ladder foot from the pole in Example 2 is 2.14 m.

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Full Notes

Key Concepts

The line of sight isThe angle formed by the lineThe angle formed by the lineTo find the heightThe ratio is chosen by checking

Frequently Asked Questions

What are the important topics in Some Applications of Trigonometry for CBSE Class 10 Mathematics?
Key topics in Some Applications of Trigonometry include Core Ideas and Definitions, Worked Patterns from Standard Problems, Key Results to Remember. Study these first, then practise questions on each for the CBSE Class 10 board exam.
How should I revise Some Applications of Trigonometry for the CBSE Class 10 board exam?
Learn the core ideas first, then work through the 136 practice questions on Some Applications of Trigonometry. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All CBSE Class 10 Mathematics Revision Notes

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