timm2139 timm2139
  • 30-07-2020
  • Mathematics
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Please answer this question now correct

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swan85 swan85
  • 30-07-2020

Answer:

Step-by-step explanation:

cosine law

a²=b²+c²-2(bc)cos44  (c=20, b=15)

a²=15²+20²-2(15*20)cos44

a=√15²+20²-2(15*20)cos44

a=13.91

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