A 10-foot vertical post cast a 20-inch shadow. At the same time, a nearby cell phone tower casts a 120-foot shadow. How tall is the cp tower?
回答 (2)
2016-01-11 1:43 am
draw picture
similar triangles
similar triangles
2016-01-11 1:44 am
are you dumb, just double it, 240 foot shadow
收錄日期: 2021-04-21 16:14:37
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160110174258AA55IxK