1 / 5

一元二次方程 运 动 问 题

一元二次方程 运 动 问 题. A. E. B. C. D. 1 ，如图，有一块直角三角形纸片，两直角边 AC=6cm,BC=8cm ，现将直角边 AC 沿直线 AD 折叠，使它落在斜边 AB 上，且与 AE 重合，求 CD 的长。. D. C. Q. A. B. P.

abigail-boyd
Download Presentation

一元二次方程 运 动 问 题

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. 一元二次方程 运 动 问 题

  2. A E B C D 1，如图，有一块直角三角形纸片，两直角边AC=6cm,BC=8cm，现将直角边AC沿直线AD折叠，使它落在斜边AB上，且与AE重合，求CD的长。

  3. D C Q A B P 2，如图，A、B、C、D为矩形的四个顶点，CD=50cm，AD=40cm,点P从点A开始沿AB边向点B以2cm/s的速度移动，点Q从点B开始沿BC边向C以3cm/s的速度移动，如果点P、Q分别从A、B同时出发，几秒钟后，⊿PBQ的面积等于450cm2

  4. A D P Q B C 3，如图，在矩形ABCD中，AB=16cm，AD=6cm，动点P、Q分别从点A、C同时出发，点P以3cm/s的速度向点B移动，点Q以2cm/s的速度向点D移动。从开始经过几秒钟点P、Q的距离为10cm。

  5. A D E B C F 4，如图，折叠长方形的一边AD，使点D落在BC边的点F处，已知AB=8cm，BC=10cm，求EC的长。

More Related