What is "in the diagram of circle c?

Without a specific diagram provided, it's difficult to give detailed information about a specific circle c. However, in a typical diagram of a circle, you would see the following elements:

• A circle with a center point (denoted by the letter c)
• Radii (plural of radius) extending from the center to the circumference of the circle
• The circumference, which is the boundary of the circle
• The diameter, which is a line segment that passes through the center and has endpoints on the circle
• Chords, which are line segments with endpoints on the circle
• Tangents, which are lines that intersect the circle at exactly one point

Additionally, a diagram of a circle may include angles formed by radii, chords, or tangents, as well as various measurements such as arc lengths and central angles.

If you have a specific diagram of circle c that you would like information about, please provide more details or a description of the diagram.