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The formula to find the approximate circumference of a circle is:
Circumference = 2 * π * radius
Given that the radius is 450, the formula becomes:
Circumference = 2 * π * 450
Circumference ≈ 2 * 3.14159 * 450
Circumference ≈ 2832.82
Therefore, the approximate circumference of a circle with a radius of 450 is 2832.82