There is a cylindrical piece of wood of base radius 10cm.
It is cut into a rectangular block of which the cross-section is a square.
What is the maximum length of the sides of the cross section
Pyth theorem”
2008-03-04 3:18 am
回答 (1)
2008-03-04 3:28 am
✔ 最佳答案
由於圓柱體被切成長方體，所以長方體的對角線長度=圓形的直徑
設長方體的正方形的長是x cm，
根據畢氏定理，
x^2 x^2 = (10x2)^2
2(x^2) = 400
x^2=200
x=√200
x=10√2
參考: 自己
收錄日期: 2021-04-23 17:46:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080303000051KK02136