Area of parallelogram

2013-07-24 4:51 am

回答 (3)

2013-07-24 7:25 am
✔ 最佳答案
按下圖可下載放大來看:

圖片參考:http://imgcld.yimg.com/8/n/HA00622999/o/20130723232429.jpg
參考: 我是全職數學補習老師
2013-07-24 6:50 am
Base of the parallelogram=r+r=2r
Height of the parallelogram= 2rsin60
Area of the parallelogram= 2r 2rsin60= 4r^2 sqrt3 /2= 2r^2 sqrt3
2013-07-24 6:15 am
Base of the parallelogram: r+r = 2r
Height of the parallelogram: r+r = 2r
Area: 2r x 2r / 2 = 4r^2 / 2 =2r^2

Hope that i can help you :D
參考: me


收錄日期: 2021-04-13 19:34:44
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130723000051KK00296

檢視 Wayback Machine 備份