Final answer:
The wrapping pattern that uses pie-shaped base sections is called the warp-wrapping technique.
Step-by-step explanation:
The wrapping pattern that uses pie-shaped base sections is called the warp-wrapping technique.
It involves winding colored fleece around sections of cotton warp threads before weaving to create a design with 32 geometric faces on the central cloth.
For example, in the painting 'Cakes' by Gandalf's Gallery, the triangular segments of the cakes are covered in frosting, and the layers of the cake are shaped like parallelograms stacked on top of each other.