surface area & volume

              

Grade 10-12 Study Guides: Clever Books 011 731 3300 (South Africa)

gerrit stols
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Interactive graphs

Please make sure that Java is installed and active in your browser. This will enable you to drag (left mouse button) and change the constructions. 

volume of solids solids and their nets
cone versus cylinder Platonic solids: cube
sphere versus cylinder Platonic solids: dodecahedron
Net of a rectangular pyramid Platonic solids: icosahedrons
  Platonic solids: octahedron
  Platonic solids: tetrahedron
area: triangles area: quadrilaterals
area and height of triangle

parallelograms between parallel lines
triangles between parallel lines parallelograms & lines: same base
triangles & parallel lines: same base parallelogram: formulae
triangles with same vertex  

Example from grade 11 book