The radius of the following figure is $2 \mathrm{~cm}$. Calculate the area of the following figure, correct to one decimal place.
Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
Question: The radius of the following figure is $2 \mathrm{~cm}$. Calculate the area of the following figure, correct to one decimal place.
Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
Question: The radius of the following figure is $2 \mathrm{~cm}$. Calculate the area of the following figure, correct to one decimal place.