help me to do this mathematics
回答 (2)
2009-03-17 10:50 pm
✔ 最佳答案
因為圓周係直徑x兀, 所以走一個圈就係:60米x3.14
走三個圈就係:
60米x3.14x3
=565.2米
2009-03-17 10:52 pm
單車徑1圈= 2 兀 r
= 2 X 3.14 X (60/2)
=188.4米
單車徑3圈共走了: = 3 X 188.4
=565.2米
= 2 X 3.14 X (60/2)
=188.4米
單車徑3圈共走了: = 3 X 188.4
=565.2米
收錄日期: 2021-04-13 16:30:31
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090317000051KK00658