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Trig Triangles
Trigonometry Triangles! Sine, cosine, tangent, and the Laws of Sine/Cosine.
Question | Answer |
---|---|
Remember SOHCAHTOA! What are the triangle ratios for SINE? | Opposite over Hypotenuse, or Opposite/Hypotenuse. SOH = Sine, Opposite, Hypotenuse. |
Remember SOHCAHTOA! What are the triangle ratios for COSINE? | Adjacent over Hypotenuse, or Adjacent/Hypotenuse. CAH = Cosine, Adjacent, Hypotenuse. |
Remember SOHCAHTOA! What are the triangle ratios for TANGENT? | Opposite over Adjacent, or Opposite/Adjacent. TOA = Tangent, Opposite, Adjacent. |
Law of Sines. What is the formula (which is changeable) of the Law of Sines? | This formula is reversible! - Where angle A is opposite of side a. sin(A)/a = sin(B)/b = sin(C)/c ---OR--- a/sin(A) = b/sin(B) = c/sin(C) |