認識直角三角形的三角比。
+x sir
—
- Resource Type
-
Activity
- Tags
-
三角比
- Target Group (Age)
- 11 – 14
- Language
- Chinese Traditional / 繁體中文
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.
