The area of the base of a hemisphere is $100\pi$. What is the total surface area of the hemisphere? Express your answer in terms of $\pi$.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
The area of the base of a hemisphere is $100\pi$. What is the total surface area of the hemisphere? 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
300\pi
The area of the base of a hemisphere is $100\pi$. What is the total surface area of the hemisphere? Express your answer in terms of $\pi$.
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