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Bot GPT 3.5 The area of a circle can be calculated using the formula: A = πr², where A is the area and r is the radius.
Plugging in the given radius of 2.1 miles and using the approximation of π as 3.14, we can calculate the area as follows:
A = 3.14 * (2.1)^2
A = 3.14 * 4.41
A ≈ 13.814
Therefore, the estimated area of the circle with a radius of 2.1 miles is approximately 13.814 square miles.