Training Enrollment Network
Early education courses
Mathematics courses
Education and training
Books and materials
Current location -
Training Enrollment Network
-
Mathematics courses
- 23 Shanghai Mathematics Ermo Hongkou
23 Shanghai Mathematics Ermo Hongkou
∫FG is the center line of the right-angled trapezoidal AECD ∠ B = ∠ B' = 90,
∴FG∥BC∥AD,
∴∠bef=∠feb′=∠efb′,
∴eb′=ef=af=fb′,
∴∠aeb′=60,
∫AB = AB′= 23,
∴AE=4.
So choose D.
Related articles
Tell me about your road to preparing for the public exam?
Zhejiang Higher Vocational College Entrance Examination Review Series Mathematics Synchronous Comprehensive Detection Volume 20 18 Answer
How to write the course record of the fourth grade in mathematics hospital
High school mathematics trigonometric function video
What is the full score of 58 in the seventh grade math exam 120?
What courses are there for mathematics majors?
Math Score Test Paper of Grade Two in Junior High School
What is 29×40?
20 14 Hunan Mathematics College Entrance Examination
Triangular induction of mathematics knowledge points in grade three