Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to graph a circle [title] Note the center of the circle. [step] The center is the point inside the circle that is at an equal distance from all of the points on the line. [title] Know how to find the radius of a circle.

Ending1: [step] A circle must be evenly divided into two equal sides. This is because the radius is known as the center, or the circle " group. Ending2: [step] If you have calculated the radius of a circle to find the magnitude of it, you know the radius of a circle to find the magnitude of it. Just remove the radius of the circle from the piece of paper; it will be and if it is not there, it won't be. Ending3: [step] The radius is the common and constant distance from all points on the line to the center of the circle. In other words, it is any line segment that joins the center of the circle with any point on the curved line. Ending4: [step] This is usually the circumference of a circle 20 degrees. The radius is usually " 1 " as well.

Answer format: ending1/ending2/ending3/ending4