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图形的变换

图形的变换. 邓屯中心小学 梁元国. (1). D. B. A. C. (1) 四个三角形 A 、 B 、 C 、 D 如何变换得到“风车”图形?. 2. (1). A. B. C. D. (1) 四个三角形 A 、 B 、 C 、 D 如何变换得到“风车”图形?. (2). ( 2 )“风车”图形中的四个三角形如何变换得到长方形?. (3). ( 3 )长方形中的四个三角形如何变换得到正方形?. (4). D. B. A. C. ( 4 )正方形中的四个三角形如何变换回到最初的图形?. 5. 7. 1. 2. 3. 4. 6.

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图形的变换

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  1. 图形的变换 邓屯中心小学 梁元国

  2. (1) D B A C (1)四个三角形A、B、C、D如何变换得到“风车”图形? 2

  3. (1) A B C D (1)四个三角形A、B、C、D如何变换得到“风车”图形?

  4. (2) (2)“风车”图形中的四个三角形如何变换得到长方形?

  5. (3) (3)长方形中的四个三角形如何变换得到正方形?

  6. (4) D B A C (4)正方形中的四个三角形如何变换回到最初的图形?

  7. 5 7 1 2 3 4 6 左图如何平移或旋转得到右图的?

  8. 5 1 2 3 4 6 7

  9. 5 5 1 2 1 2 3 4 6 3 4 6 7 7

  10. A O O B

  11. B C

  12. A C 图形A如何得到图形C?

  13. A B

  14. C M N B 图形B如何得到图形C?

  15. A B D C

  16. 3 2 4 1 填空: (1)图形2绕点O逆时针旋转( )度到图形1所在的位置; 90 (2)图形2绕点O顺时针旋转90度到图形( )所在的位置; 3 O (3)图形2绕点O顺时针旋转( ) 度到图形4所在的位置。 180

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