Joke Collection Website - Mood Talk - As shown in the figure, in the quadrilateral ABCD, AB is parallel to CD, AD=CD=BC. The extension lines of AD and BC intersect at G, CE⊥AG at E, CF⊥AB at F
As shown in the figure, in the quadrilateral ABCD, AB is parallel to CD, AD=CD=BC. The extension lines of AD and BC intersect at G, CE⊥AG at E, CF⊥AB at F
⑴.CE=CFAG=BGDG=CGAE=AF
⑵.CE=CF∵AB‖DC, AD=DC=CB∴ABCD is an isosceles trapezoid ∠DAB=∠ CBA.∠GBC=∠GAB
∴∠GDC=∠GBA⊿CED≌⊿CFB(AAS)∴CE=CF.
- Related articles
- On Aesthetic Sentimental Personality _ Memories become shackles and cannot escape.
- I am a boy. I'm not fat. I am thin. Why does my breast seem to be getting bigger and feel very painful? Now they are like teenage girls. What is wrong with me?
- 202 1 tired love stories: that was the only time you stood me up. One time you stood me up was a generation.
- Talk about your own life
- Chinese teaching plan for kindergarten middle class: the change of expression
- A beautiful sentence wishing children grow up.
- Where can I take my children to experience picking in Beijing?
- Tell me about the former teenager.
- What are the advantages of Big Wolf and Logger Vick?
- Ask a few questions to the senior salesperson, please let me know if you know the stuff! Urgent, I will continue to add points later.