1. The outer circumference of a circular racing track is 60 m longer than the inner circumference. What is the width of the track?
Show the steps. Given that the answer is 9.55m .
F.2 Maths
2007-06-10 4:30 am
回答 (2)
2007-06-10 4:48 am
let outer width be x,
let inner width be y
(2x+2y)兀-2y兀=60
2x兀+2y兀-2y兀=60
2x兀=60
2x=60/兀
x=9.55
∴the width of the width is 9.55m.
let inner width be y
(2x+2y)兀-2y兀=60
2x兀+2y兀-2y兀=60
2x兀=60
2x=60/兀
x=9.55
∴the width of the width is 9.55m.
參考: 自己
2007-06-10 4:34 am
9.55m
收錄日期: 2021-04-13 13:30:54
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070609000051KK04446