Circumference = 2*pi*6.5 = 40.841 inches rounded to 3 decimal places
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It is 20.69 inches, approx.
The answer depends on what the 65 mm refers to: the radius of the diameter. Please specify.
The circumference of a circle is calculated using the formula C = π*d, where C is the circumference, π is a constant approximately equal to 3.14159, and d is the diameter of the circle. In this case, the diameter is 84 inches. Plugging this into the formula, we get C = 3.14159 * 84 = 263.89356 inches. Therefore, the circumference of a circle with an 84-inch diameter is approximately 263.89 inches.
Circumference = 204.2 mm, approx.
The Area of a circle is Pi (r)(r) so the area of a circle with the radius of 4, would be 16pi