alishacordova23 alishacordova23

05-05-2020
Mathematics

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whoever is looking at this, please help me. i'll give you 19 points!

whoever is looking at this please help me ill give you 19 points class=

Respuesta :

05-05-2020

c² = a² + b² - 2 a b cos C

2 a b cos C = a² + b² - c²

cos C = (a² + b² - c²) / 2ab

C = arccos( (a² + b² - c²) / 2ab )

C = arccos( (17² + 8² - 16²) / (2 (17)(8) ) )

C ≈ 69.11°

Answer: 69.1

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