What is the number of square meters in the area of a circle with diameter 4 meters? Express your answer in terms of $\pi$.
Question:
What is the number of square meters in the area of a circle with diameter 4 meters? Express your answer in terms of $\pi$.
Answer:
Let's think step by step.

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4\pi
What is the number of square meters in the area of a circle with diameter 4 meters? Express your answer in terms of $\pi$.
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