braydenshipe
braydenshipe braydenshipe
  • 12-04-2020
  • Mathematics
contestada

need to find the length of a

need to find the length of a class=

Respuesta :

oumaroumyriam
oumaroumyriam oumaroumyriam
  • 12-04-2020

Answer:

a ≈ 19.45

Step-by-step explanation:

Law of Cosines

a=c2+b2﹣2cbcosγ

=112+132﹣2·11·13·cos(108°)

≈19.45196

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