八上第13章《轴对称》P83第12题-三角形两邻边向外作正三角形(赵朝东)
赵朝东
—
- Resource Type
-
Activity
- Tags
-
- Target Group (Age)
- 3 – 19+
- Language
- Chinese Simplified / 简体中文
Error
A timeout occurred. Trying to re-save …
Sorry, but the server is not responding. Please wait a few minutes and then try to save again.
