Respuesta :

wolf1728
From the Law of Cosines
Cos (C) = (a^2 + b^2 -c^2) / 2 * a * b
Cos (C) =(40^2 + 41^2 -9^2) / 2 * 40 * 41
Cos (C) = 1,600 + 1,681 - 81 / 3,280
Cos (C) = 3,200 / 3,280
Cos (C) = 0.9756097561
Incidentally, Angle C = 12.68 Degrees


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skydreammer50923

Answer:

c=40/41

Step-by-step explanation:

corect for plato

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