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The Law of Sine

The Law of Sine. Three Methods. Angle Angle Side (AAS) Angle Side Angle (ASA) Side Side Angle (SSA) This one can be problematic. LAW of COSINE. C 2 =a 2 +b 2 -2ab cosC Solves for SSS and SAS. C 2 = a 2 +b 2 -2ab cosC 21.88 2 = 9.81 2 +15.26 2 -2(9.81* 15.26)cosC

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The Law of Sine

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  1. The Law of Sine

  2. Three Methods • Angle Angle Side (AAS) • Angle Side Angle (ASA) • Side Side Angle (SSA) This one can be problematic

  3. LAW of COSINE C2 =a2 +b2 -2ab cosC Solves for SSS and SAS

  4. C2 = a2 +b2 -2ab cosC 21.882 = 9.812 +15.262 -2(9.81* 15.26)cosC 478.7344 = 329.1037- 299.4021cosC 149.6307 = -299.4021cosC -.4998 = cosC = 120° 120°

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