When a minute-hand makes 1 turn, how many degree does the hour-hand turn?
唔該,答左有20點呀!!!!!!!
簡單一題中一數 20點
2011-01-21 2:17 am
回答 (3)
2011-01-24 2:08 am
✔ 最佳答案
minute-hand makes 1 turn = 1 hrSo the degree is:
1/12 *360 =30''
2011-01-21 2:22 am
The hour-hand turns 0.72degrees
收錄日期: 2021-04-20 18:46:19
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110120000051KK02263