I'm trying to author a problem with an embedded SageMath graph. I take two random integer values generated by Webwork and pass them to the Sage cell, which generates the graphic correctly. The answer is computed in terms of the random numbers from Webwork, so I'm only using Sage to display the graph. My problem is that Sage insists that there is a sageAnswer, which I think I've not created:

No answer evaluator for the question labeled: sageAnswer

The answer checker I intend correctly checks the answer I intend, but it is preceded by the checking on a nonexistent sage answer.

I'm not sure what is wrong. I'm attaching the pg file

Ken Levasseur

PS: The radius formula is not correct but has no bearing on the issue.