Cross Sections of 3D Figures

Adapted from freely available https://im.openupresources.org/ Lesson 7.7.11 Includes the incomparable SLICE MASTER 3000 https://www.youtube.com/watch?v=Hwt0xhsIeAQ&feature=youtu.be and Ninja cross section https://www.youtube.com/watch?v=hlD_j3AtxGs&feature=youtu.be

By Desiree Daring