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Trigonometrical Ratios Class 9

ICSE

The six trigonometrical ratios of an acute angle and the relations between them.

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Topic-wise short notes with solved examples.Open PDFDownload
Every formula and result of the chapter on one sheet.Open PDFDownload
Daily practice problems with an answer key.Open PDFDownload

What this chapter covers

  • Naming the sides
  • The six ratios
  • Relations between the ratios
  • Given one ratio, find the others
  • Using the ratios to find sides
  • Expressions in sine and cosine

The short notes explain each of these topics with solved examples, the formula bank lists every result on one sheet, and the DPP sheet gives practice questions with an answer key.

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