Maths problem: how to do, thanks?
回答 (3)
2020-02-26 10:14 pm
✔ 最佳答案
三角形外角 = 另兩內角和故
a = b + 角BGF
d = c + 角CGD
因是對頂角,
角BGF = 角CGD
故
a - b = d - c
即 d = a - b + c
2020-02-26 10:20 pm
a=b+角BGF=b+角CGD, 角CGD=a-b
d=角CGD+c=a-b+c
d=角CGD+c=a-b+c
2020-02-26 10:08 pm
angle B=angle c/
Angle A=angle D
Angle A=angle D
收錄日期: 2021-04-24 07:57:04
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20200226140245AAnRWBw