Two concentric circular regions have radii of 1 inch and 10 inches. What is the area, in square inches, outside the smaller region, but inside the larger region? Express your answer in terms of $\pi$.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Two concentric circular regions have radii of 1 inch and 10 inches. What is the area, in square inches, outside the smaller region, but inside the larger region? Express your answer in terms of $\pi$.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
99\pi \text{ square inches}
Two concentric circular regions have radii of 1 inch and 10 inches. What is the area, in square inches, outside the smaller region, but inside the larger region? Express your answer in terms of $\pi$.
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