There is one plane determined by segments AB and BC.
Work Step by Step
Using the tissue box we created in part (a), this is the same plane (or the same side of the tissue box we found in part (a)). OR. You could use the postulate that states 'through any three non-collinear points there lies one plane.' Segments AB and BC utilize three non-collinear points; points A, B, and C. Therefore, there can only be one plane determined by segments AB and BC.