要有咩野條件才可prove到長方形/菱形/正方形, 有冇reason????
Thanks
Prove Quatrilateral
2008-03-31 12:04 am
回答 (1)
2008-03-31 6:30 am
✔ 最佳答案
長方形prop. of //gram
equal diagonals
菱形
prop. of //gram
diagonals bisect interiop angles
diagonals perpendicular
正方形
長方形&菱形的reason都岩用...
prop. of //gram 係平行四邊形
但係唔可以咁寫...要寫明邊個reason
因為平行四邊形的reason有3個
opp. sides equal
opp. angles of//gram
diag. of //gram
參考: last minute
收錄日期: 2021-04-13 17:34:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080330000051KK01838