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AB 的延長線

G. E. F. D. C. B. A. G. E. F. D. C. B. A. G. E. F. D. C. B. A. G. E. F. D. C. B. AB 的延長線. A. G. E. F. D. C. B. BA 的延長線. A. G. E. F. D. C. B. BA 的延長線. AB 的延長線. A. G. H. E. F. D. C. B. K. A. G. 亦可以: x. H. E. F. x. D. C. B. K. A.

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AB 的延長線

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  1. G E F D C B A

  2. G E F D C B A

  3. G E F D C B A

  4. G E F D C B AB的延長線 A

  5. G E F D C B BA的延長線 A

  6. G E F D C B BA的延長線 AB的延長線 A

  7. G H E F D C B K A

  8. G 亦可以:x H E F x D C B K A 銳角的例子:EDC

  9. G 直角的例子:FEC 亦可以:y H E F y D C B K A

  10. G 鈍角的例子:HGF z 亦可以:z H E F D C B K A

  11. G H E F D C B K A K 是指哪一個角?

  12. 角的定義: • 有公共端點的兩條射線或線段所組成的圖形叫做角。這個公共端點叫做角的頂點,這兩條射線或線段叫做角的邊。 • 角可以看成為是由一條射線或線段繞著它的端點旋轉的結果。

  13. G H E F D C B K ABK A

  14. G H E F D C B K A

  15. G H E F D C B K A

  16. G H E F D C B K A

  17. G H E F D C B K A

  18. G H E F D C B K A

  19. 銳角三角形 鈍角三角形 直角三角形 等腰三角形 等腰直角三角形 等邊三角形

  20. 四邊形的種類 • 平行四邊形(正方形、矩形(長方形)、菱形‧‧‧ • 梯形 • ‧‧‧ 五邊形的種類

  21. 四面體 五面體 七面體 六面體 八面體

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