jeremycbell
jeremycbell jeremycbell
  • 14-02-2019
  • Mathematics
contestada

I need help with number 5

I need help with number 5 class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 18-02-2019

Answer:

  C)  27.8 m

Step-by-step explanation:

The law of cosines applies.

  c^2 = a^2 + b^2 - 2ab·cos(C)

  c^2 = 18^2 + 17^2 -2·18·17·cos(105°) . . . . fill in the given dimensions

  c^2 ≈ 771.3973

  c ≈ √771.3973 ≈ 27.8 . . . . meters

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