The diameter of a circle is the length of the circle from one side to the other, going through the middle of the circle.
The radius is the measurement of length from the middle of the circle to the perimeter of the circle. This is half of the diameter.
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because cicle sounds weird. r is used as an abbreviation for radius meaning half the diameter of the circle.
The cord of a circle that contains the center of that circle is a diameter of that circle.
You do a diameter circle!!
A circle with a diameter of 28 is a circle.
The radius of a circle is half the diameter so if the radius of a circle is r, then the diameter is 2r.