1) 2 minutes : 90 seconds
2) 270 degree : 3/5 right - angle
Need to step
maths questions (quickly)
2007-06-04 6:35 am
回答 (2)
2007-06-04 7:29 am
✔ 最佳答案
1) 2 minutes : 90 seconds 2min=120``:90``
=4:3
2) 270 degree : 3/5 right - angle
right-angle=90 degree
3(90)/5=54 degree
270 degree:54 degree
=270:54
=5:1
參考: My mathematics knowledge
2007-06-04 6:39 am
1) 2 minutes : 90 seconds
120 seconds : 90 seconds
4 : 3
2) 270 degree : 3/5 right - angle
270 degree : 54 degree
5 : 1
120 seconds : 90 seconds
4 : 3
2) 270 degree : 3/5 right - angle
270 degree : 54 degree
5 : 1
收錄日期: 2021-04-13 00:56:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070603000051KK05411