Assertion: circle's radius | /r/HasProperty | denoted by r
Facets:
value: always
type: TEMPORAL
Source sentences:
text: Note: The "general" form may be given in your book using different letters for the coefficients, but the "center-radius" form will use the same letters as shown above: The center is always denoted by " (h, k) " and the radius is always denoted by " r ".