SOH-CAH-TOA Rule

The SOH-CAH-TOA rule is a mnemonic device used in trigonometry to remember the relationships between the sides and angles of a right triangle. Here’s what it stands for:

  • SOH: Sine = Opposite / Hypotenuse
  • CAH: Cosine = Adjacent / Hypotenuse
  • TOA: Tangent = Opposite / Adjacent

These relationships help in solving for unknown sides or angles in right triangles using trigonometric functions.


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