verecasta verecasta

29-04-2021
Mathematics

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Please help me

possible answers:

37 degrees
38 degrees
40 degrees
43 degrees

Please help mepossible answers37 degrees38 degrees40 degrees43 degrees class=

Respuesta :

cwrw238 cwrw238

29-04-2021

Answer:

38 degrees.

Step-by-step explanation:

Using the Cosine Rule:

11^2 = 10^2 + 17^2 - 2*10*17cos A

cos A = (11^2 - 10^2 - 17^2) / (-2*10*17)

cos A = -268/-340 = 0.788235

m < A = 37.979

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