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Answer:
B) [tex]45\pi cm^{2}[/tex]
Step-by-step explanation:
[tex]A=\frac{\pi r^{2}(central. Angle) }{360} =\frac{\pi (9)^{2}(200) }{360} =\frac{\pi (81)(200)}{360}=45\pi cm^{2}[/tex]
Hope this helps