find the area of a square with its diagonals 95 cm long.
計比我..吾該.
math f.2
2009-07-26 11:24 pm
回答 (2)
2009-07-27 12:50 am
✔ 最佳答案
假設該正方形的其中\一條邊為x,對角線95cm,area將會係x^2,可以利用畢氏定理 x^2+x^2=95^2 then 2x^2=9025,最後可得出x^2=4512.5cm^2所以area是4512.5cm^2
2009-07-26 11:40 pm
菱形面積=對角線*對角線/2=95*95/2=4512.5cm^2
收錄日期: 2021-04-23 20:42:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090726000051KK00925