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How can I create a circle with a certain diameter/radius? I know there's a way, but I don't know how to.

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up vote 4 down vote accepted

Here are the steps you can follow.

  1. Hit ShiftA on the keyboard.
  2. Select Circle.
  3. Hit T to activate the Tool panel.
  4. Under the "Add Circle" Header, key in the radius of the circle you need.

enter image description here

Note Take care not to move the circle before you change it's radius the option would be unavailable if you moved the circle before hitting T

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The operator properties are also available in a floating panel by pressing F6 – sambler Jan 10 at 16:49

The easiest way to create a circle with a designated radius is to add the circle mesh primitive. In the characteristics panel for the primitive, it allows you to specify the radius.

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