Ay123
Ay123 Ay123
  • 31-07-2020
  • Mathematics
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Does anyone know the answer

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onething22
onething22 onething22
  • 31-07-2020

Solution: C

Explanation:

Use the cosine rule

A^2=B^2+C^2-2BCcos a

5^2=8^2+8^2-2×8×8cos a

cos a=(25-64-64)÷(-2×64)

a=36.419°

approx = 36

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