重有一條學
2007-06-19 9:57 am
回答 (1)
2007-06-19 10:07 am
✔ 最佳答案
你寫既答案錯咩?我都計到呢 d 答案喎~~as the map scale is 1:20000
horizontal distance between A & B should be 5cm*20000
= 100,000cm
= 1000m
gradient of road from A to B,
Vertical / Horizontal = 100/1000
= 1/10
收錄日期: 2021-04-23 22:08:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070619000051KK00389