1 / 3

6 .

3 上. 18 平行和垂直. 6. 10. (a) 上圖中，共有平行線 對。. 3 上. 18 平行和垂直. 6. (b) 在上圖中減少一條直線，平行線的數 量便會減少 對。. 4. 減少：. 共有平行線 6 對。. 10 － 6. ＝ 4 （對 ). 3 上. 18 平行和垂直. 6. 如果加畫的一條線垂直穿過所有線，互相垂直的線的數量便最多。. (c) 在上圖中加畫一條直線，最多可得出 互相垂直的線 對。. 5.

studs
Download Presentation

6 .

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 3上 18平行和垂直 6. 10 (a) 上圖中，共有平行線對。

  2. 3上 18平行和垂直 6. (b) 在上圖中減少一條直線，平行線的數 量便會減少對。 4 減少： 共有平行線 6 對。 10－6 ＝ 4（對)

  3. 3上 18平行和垂直 6. 如果加畫的一條線垂直穿過所有線，互相垂直的線的數量便最多。 (c) 在上圖中加畫一條直線，最多可得出 互相垂直的線對。 5

More Related