Respuesta :

princechimezirim096

Answer:

43°

Step-by-step explanation:

Calculating for the measure of angle C using

sine rule

[tex] \frac{sin18}{9} = \frac{sinc}{20} \\ sinc = \frac{sin18 \times 20}{9} \\ sinc = 0.6867 \\ c = \csc(0.6867) \\ c = 43.3869 \\ c = 43 \: degrees[/tex]

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