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CK-12 Foundation
Ck 12: Interactive Geometry: 1.12 Cross Sections of Solids
See how the cross-sections of solids relate to their shapes.
CK-12 Foundation
Ck 12: Interactive Geometry: 1.10 Volume of Solids
Explore the volume of solid figures.
CK-12 Foundation
Ck 12: Interactive Geometry: 1.11 Surface Area and Nets
Explore surface areas and nets with 2D and 3D shapes.
CK-12 Foundation
Ck 12: Interactive Geometry: 9.5 Modeling in Three Dimensions
Explore connections between a 2-dimensional net and a 3-dimensional box. Later in this section, use equations with variables to solve real world problems that use 2 and 3-dimensional objects.
Math Planet
Math Planet: Pre Algebra: Pyramids, Prisms, Cylinders and Cones
Provides an explanation, examples, and video lessons all related to area and volume of pyramids, prisms, cylinders, and cones.