中點定理 | Mid-point Theorem
影片內容：
00:05 – 咩係中點定理? | what is mid-point theorem?
01:15 – 中點定理的證明 | proof of mid-point theorem
02:33 – 例子 1 | example 1
03:46 – 例子 2 | example 2
00:05 – 咩係中點定理? | what is mid-point theorem?
01:15 – 中點定理的證明 | proof of mid-point theorem
02:33 – 例子 1 | example 1
03:46 – 例子 2 | example 2