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Revision Notes

Trigonometric Tables — Revision Notes

ICSE · Class 10 · Mathematics

Trigonometric Tables revision notes for ICSE Class 10 Mathematics: 4 topics in quick points. Part of the ICSE Class 10 Mathematics syllabus.

31 questions25 flashcards4 formulas & key relations5 concepts

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An illustration showing the conversion process between decimal degrees and degrees, minutes, and seconds (DMS) format, with examples.
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Key Topics to Revise

1

Angle Measurement in Degrees, Minutes, and Seconds

  • 1 degree can be divided into 60 minutes.
  • 1 minute can be further divided into 60 seconds.
  • Degree, minute, and second notation is used to write angles more precisely.
2

Structure of the Trigonometric Table

  • Trigonometric tables give approximate values of sine, cosine, and tangent for angles between 0° and 90°.
  • The values are correct up to four places of decimals.
  • Each trigonometric table is divided into 12 columns.
3

Using Mean Differences

  • The mean difference is added when the function value increases as θ increases.
  • The mean difference is subtracted when the function value decreases as θ increases.
  • Sine, secant, and tangent increase with θ, so their mean difference is added.
4

Important Facts to Remember

  • The first column on the left contains degrees from 0° to 90°.
  • The table has ten minute columns.
  • The minute columns are headed by 0', 6', 12', 18', 24', 36', 42', 48', and 54'.

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Full Notes

Key Concepts

An angle can be divided intoA decimal degree is first splitA trigonometric table contains approximate valuesThe first column on the extremeMean difference columns are used

Frequently Asked Questions

What are the important topics in Trigonometric Tables for ICSE Class 10 Mathematics?
Key topics in Trigonometric Tables include Angle Measurement in Degrees, Minutes, and Seconds, Structure of the Trigonometric Table, Using Mean Differences, Important Facts to Remember. Study these first, then practise questions on each for the ICSE Class 10 board exam.
How should I revise Trigonometric Tables for the ICSE Class 10 board exam?
Learn the core ideas first, then work through the 31 practice questions on Trigonometric Tables. 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 Revision Notes

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