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Syllabus

Heights and Distances — Syllabus

ICSE · Class 10 · Mathematics

What Heights and Distances covers in ICSE Class 10 Mathematics: 4 topics, for the 2026-27 session. Part of the ICSE Class 10 Mathematics syllabus.

41 questions27 flashcards5 formulas & key relations5 concepts

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A diagram illustrating the angle of elevation, showing an observer looking up at an object, with the line of sight and horizontal line forming the angle.
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4 Topics · ICSE Class 10 Mathematics · 2026-27

Topics in Heights and Distances

1

Core Ideas

  • Trigonometric ratios help in finding heights and distances that are difficult to measure directly.
  • The object and the observation point must lie in the same vertical plane as the horizontal reference line.
  • Angle of elevation is used when the object is above the horizontal line.
2

Working Rules for Solving Problems

  • Step 1: Make all the possible right angles.
  • Step 2: Mark all given quantities and angles.
  • Step 3: If the figure has more than one triangle, assume the common side, say x, connecting the triangles.
3

Angles of Elevation and Depression

  • Angle of elevation is measured upward from the horizontal line to the line of sight.
  • Angle of depression is measured downward from the horizontal line to the line of sight.
  • The horizontal line is the reference line for both angles.
4

Trigonometric Ratios in Heights and Distances

  • The chapter mainly uses trigonometric ratios to relate angles and side lengths in right triangles.
  • The most commonly used ratios are sin, cos, and tan.
  • These ratios are applied to known angles from trigonometric tables.

Key Concepts

Central concept: Solving 2-D problems using angles of elevation and depression with trigonometric ratios

Angle of elevationAngle of depressionHorizontal line OXTrigonometric ratiosRight-angled trianglesWorking rulesApplicationsScope restriction

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Frequently Asked Questions

What are the important topics in Heights and Distances for ICSE Class 10 Mathematics?
Key topics in Heights and Distances include Core Ideas, Working Rules for Solving Problems, Angles of Elevation and Depression, Trigonometric Ratios in Heights and Distances. Study these first, then practise questions on each for the ICSE Class 10 board exam.
How should I revise Heights and Distances for the ICSE Class 10 board exam?
Learn the core ideas first, then work through the 41 practice questions on Heights and Distances. 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 ICSE Class 10 Mathematics Syllabus

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