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綱要

  1. Triangles
    1. Sum of the interior angles
    2. Exterior angle of a triangle
    3. Equilateral triangles
    4. Isosceles triangles
    5. Right-angled triangle
    6. Triangle area (different basis)
    7. Pythagoras
    8. Congruent: triangles
    9. Congruent: triangles
    10. Triangle sides: midpoints
    11. Points of intersection (Euler line)

Triangles

作者:Gerrit Stols

  • Sum of the interior angles

  • Exterior angle of a triangle

  • Equilateral triangles

  • Isosceles triangles

  • Right-angled triangle

  • Triangle area (different basis)

  • Pythagoras

  • Congruent: triangles

  • Congruent: triangles

  • Triangle sides: midpoints

  • Points of intersection (Euler line)

下一步
Sum of the interior angles

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