Training Enrollment Network
Early education courses
Mathematics courses
Education and training
Books and materials
Current location -
Training Enrollment Network
-
Mathematics courses
- Junior high school mathematics geometry comprehensive examination questions
Junior high school mathematics geometry comprehensive examination questions
Solution:
∵AB⊥BD AC⊥CD
∴∠ABE=∠DCE=90？
∠AEB=∠DEC again.
∴△EBA∽△ECD
∴AE/DE=AB/DC
5/2=AB/(9/5)
5x9/5=2AB
AB=9/2
Related articles
Ning's hukou is in Ningde for junior high school?
Principles of junior high school geometry writing
How to improve the mathematics learning effect of primary school students
Solving Mathematics Elective Course 4- 1
The relationship between expected value and average value
I want to be admitted to Baoding No.3 Middle School, but my math scores have not been very good. Is there still a chance to work hard in the second day of this year?
A composition about flying
How much is the summer vacation price of senior two mathematics counseling institutions?
How to write the fifth grade math handwritten newspaper?
20 14 Shenzhen Yimo science mathematics