sara68
sara68 sara68
  • 12-04-2016
  • Mathematics
contestada

i need help,, and thanks☺

i need help and thanks class=

Respuesta :

AnikaPrakash AnikaPrakash
  • 12-04-2016
Use the law of cosines. c^2= a^2 + b^2 - (2ac*cos (C))
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