OpenStudy (anonymous):

Please, calculate that. I always get wrong answer β = 151°, a = 140, c = 31 b= square root of a^2+c^2-2accosβ

5 years ago
OpenStudy (anonymous):

167.78?

5 years ago
OpenStudy (anonymous):

Oh thank you))

5 years ago
OpenStudy (anonymous):

no problem :)

5 years ago
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