New coin is of 25mm
old cins used to come in 26mm and
eleven sided one is of 27mm
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The radius of a coin with diameter of 45 mm is : 45/2 = 22.5mm The circumference of a coin with diameter of 45 mm is 45*pi = 141,372mm rounded to 3 decimal places
The diameter of any circular coin is the longest straight line passing through its centre.
I don’t know why do you think I looked it up idiot are you even real
Diameter of circle = 2 * Radius of the circle.
If you mean the diameter of a circle with area pi, then the diameter is 2. If you mean the diameter of a circle with circumference pi, then the diameter is 2. If you mean the diameter of a circle with diameter pi, then the diameter is pi. If you mean the diameter of a circle with radius pi, then the diameter is 2pi.