Chapter 7.3 (Mathematics, Grade 9)

Sine and Cosine of an Acute Angle in a Right Triangle

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Chapter topics:

  1. Sine and Cosine of an Acute Angle in a Right Triangle
  2. Trigōnon + metreō
  3. Finding the acute angle of a triangle
  4. Finding the side of a triangle
  5. Practice and solve
  6. Rules and formulas

A valid license for package „Erakasutaja 2024/25”, „Õpilane 2024/25”, „Õpilane 2024/25 - SOODUSHIND!”, „Õpilane 2024/25 – isiklik”, „Õpilane 2024/25 isiklik: eesti ja venekeelne” or „Õpilane 2024/25: eesti ja venekeelne” is required to use the kit. Click the link with the package name to learn more about the package and order a license.

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