S.3 Ch.4 More about 3-D solids

Alexander Lau, smcemath, Sep 24, 2015

Table of Contents

  1. Reflectional Symmetry
    1. Reflectional Symmetry of Triangular Prism
    2. Reflectional Symmetry of Cylinder
    3. Reflectional Symmetry of Trapezoidal Prism
  2. Rotational Symmetry
    1. Rotational Symmetry of Cube and Tetrahedron
  3. Front, side and top view
    1. Front, side and top view
    2. Front, side and top view - Why 3 angles?
    3. Games
  4. Angles, projection
    1. Angle between line and plane
    2. Angle between line and plane 2
    3. Angle between line and plane 3
    4. Angle between line and plane 4
    5. Angle between two planes
    6. Angle between two planes 2
    7. Angle between two planes 3
    8. Angle between two planes 4
    9. Lighthouse

1.

Reflectional Symmetry

  • 1. Reflectional Symmetry of Triangular Prism
  • 2. Reflectional Symmetry of Cylinder
  • 3. Reflectional Symmetry of Trapezoidal Prism

1.1.

Reflectional Symmetry of Triangular Prism

Reflectional Symmetry of Triangular Prism
– Alexander Lau

1.2.

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1.3.

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2.

Rotational Symmetry

  • 1. Rotational Symmetry of Cube and Tetrahedron

2.1.

Rotational Symmetry of Cube and Tetrahedron

[b][color=#ff0000]Rotational Symmetry of Cube [/color][/b][br][url=http://youtu.be/gBg4-lJ19Gg]http://youtu.be/gBg4-lJ19Gg[/url][br][br][color=#ff0000][b]Rotational Symmetry of Tetrahedron[/b][/color][br][url=http://youtu.be/qAR8BFMS3Bc]http://youtu.be/qAR8BFMS3Bc[/url]
– Alexander Lau

3.

Front, side and top view

  • 1. Front, side and top view
  • 2. Front, side and top view - Why 3 angles?
  • 3. Games

3.1.

Front, side and top view

Front, side and top view
– Alexander Lau

3.2.

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3.3.

–

4.

Angles, projection

  • 1. Angle between line and plane
  • 2. Angle between line and plane 2
  • 3. Angle between line and plane 3
  • 4. Angle between line and plane 4
  • 5. Angle between two planes
  • 6. Angle between two planes 2
  • 7. Angle between two planes 3
  • 8. Angle between two planes 4
  • 9. Lighthouse

4.1.

Angle between line and plane

– Alexander Lau

4.2.

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4.3.

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4.4.

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4.5.

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4.6.

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4.7.

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4.8.

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4.9.

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