Radius is the length from the mid point of a circle to the edge of the circle. You can see that segment JK goes from the middle of the circle to the edge
Quick edit: I see another answer that says secant, here’s a picture showing a few of the different lines in circles or whatever they’re called
Step-by-step explanation: n geometry, a secant of a curve is a line that intersects the curve at a minimum of two distinct points. The word secant comes from the Latin word secare, meaning to cut. In the case of a circle, a secant will intersect the circle at exactly two points.
