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sara68
sara68 sara68
  • 11-04-2016
  • Mathematics
Answered

i need help,, and thanksâ˜ș

i need help,, and thanks class=

Verified Answer :

AnikaPrakash AnikaPrakash
  • 11-04-2016

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

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