Volume Links:
Cavalieris Principle:
without geogebra - also in depth (if time)
https://betterlesson.com/lesson/587906/volume-formulas-cavalieri-s-principle-and-2-d-cross-sectionshttps://betterlesson.com/lesson/587906/volume-formulas-cavalieri-s-principle-and-2-d-cross-sections