Find the area of the region bounded by the graph of
\[r = \frac{9}{5 - 4 \cos \theta}.\]
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Find the area of the region bounded by the graph of
\[r = \frac{9}{5 - 4 \cos \theta}.\]
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
15 \pi
Find the area of the region bounded by the graph of
\[r = \frac{9}{5 - 4 \cos \theta}.\]
train