jude28 jude28
  • 26-02-2021
  • Mathematics
contestada

Find mZA.
Round to the nearest degree.
10
10
B
13
11

Find mZA Round to the nearest degree 10 10 B 13 11 class=

Respuesta :

asmaNasr
asmaNasr asmaNasr
  • 26-02-2021

Step-by-step explanation:

[tex] {13}^{2} = {10}^{2} + {11}^{2} - 2 \times (11)(10) \cos(a) \\ 169 = 100 + 121 - 110 \cos(a) \\ 52 = 110 \cos(b) \\ \cos(b) = \frac{26}{55} \\ b = 61.78 \: degrees[/tex]

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