3D Geometry
Volume measures three-dimensional filling while surface area measures exposed two-dimensional boundary, and both can be built from simpler layers or faces.
What you'll learn
- Build prism and cylinder volume as base area times height.
- Distinguish cubic volume units from square surface-area units.
- Count only exposed faces after solids join.
- Explain length, area, and volume scale factors k, k², and k³.
- Use nets and face inventories to reason about surface area.
Before you start
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