Well, isn't that just a happy little question! To find the diameter of the circle, you simply need to multiply the radius by 2. Since the radius is 22 millimeters, the diameter would be 44 millimeters. And if you want to convert that to centimeters, you can divide by 10 because there are 10 millimeters in a centimeter. So, the diameter of the circle would be 4.4 centimeters. Happy calculating!
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Radius = 1/2 of diameter = 19 centimeters.
Length of a radius is always half the diameter of a circle. This means that the circle has a radius of 2cm.
The radius would be 7 millimeters.
50 centimeters
1 cm