Question

How we can define radius of a circle ?

Answer 1

A radius is a straight line from the center of a circle to the circumference of a circle. ... A radius can be a line from any point on the circumference tothe center of the circle. If you put tworadii together, edge to edge, going through the center of a circle, youwould get a diameter

Answer 2

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we can define radius as it is half of the diameter