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Syllabus

Trigonometry — Syllabus

Maharashtra Board · Class 10 · Mathematics

What Trigonometry covers in Maharashtra Board Class 10 Mathematics: 4 topics, for the 2026-27 session. Topics include Basic Trigonometric Ratios.

45 questions30 flashcards23 formulas & key relations5 concepts

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4 Topics · Maharashtra Board Class 10 Mathematics · 2026-27

Topics in Trigonometry

1

Basic Trigonometric Ratios

  • In a right-angled triangle, the three main ratios are sine, cosine, and tangent.
  • For the triangle in Fig. 6.2, sinθ = AB/AC, cosθ = BC/AC, and tanθ = AB/BC.
  • These ratios depend on the angle, not on the size of the triangle, as long as the angle stays the same.
2

Reciprocal Ratios

  • cosecθ, secθ, and cotθ are the reciprocal ratios of sinθ, cosθ, and tanθ.
  • cosecθ = 1/sinθ, secθ = 1/cosθ, and cotθ = 1/tanθ.
  • In the triangle form, cosecθ = hypotenuse/opposite side, secθ = hypotenuse/adjacent side, and cotθ = adjacent side/opposite side.
3

Fundamental Trigonometric Identities

  • The three fundamental identities are obtained from the basic ratios and Pythagoras theorem.
  • Identity II is sin²θ + cos²θ = 1.
  • Identity III is 1 + cot²θ = cosec²θ.
4

Values of Trigonometric Ratios for Standard Angles

  • The values for 0°, 30°, 45°, 60°, and 90° are very important.
  • sin 30° = 1/2.
  • sinθ at 0°, 30°, 45°, 60°, 90° is 0, 1/2, 1/√2, √3/2, 1.

Key Concepts

Central concept: Trigonometry

Basic trigonometric ratiosReciprocal ratiosTrigonometric identitiesRight triangle relationsSpecial angle valuesAngle of elevation and depressionApplications of trigonometryAryabhata

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Frequently Asked Questions

What are the important topics in Trigonometry for Maharashtra Board Class 10 Mathematics?
Key topics in Trigonometry include Basic Trigonometric Ratios, Reciprocal Ratios, Fundamental Trigonometric Identities, Values of Trigonometric Ratios for Standard Angles. Study these first, then practise questions on each for the Maharashtra Board Class 10 board exam.
How should I revise Trigonometry for the Maharashtra Board Class 10 board exam?
Learn the core ideas first, then work through the 45 practice questions on 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 Maharashtra Board Class 10 Mathematics Syllabus

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