數學題,,, THX

👨🏻‍🏫 學術台數學

[匿名]

2010-05-01 6:17 am

圖中,,,AOB , COD 為直線 , 求X

圖:http://i586.photobucket.com/albums/ss309/lee123311/1a3141e2.jpg

THX : )

回答 (5)

[匿名]

2010-05-01 6:59 am

✔ 最佳答案

∠AOB=∠COD (vertically opposite angle)對頂角
2x+82°=52°+x
2x+x=52°-82°
3x=-30°
x=10°

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榮昇

2010-05-04 6:21 am

∠AOB=∠COD (vertically opposite angle)對頂角
2x+82°=52°+x
2x+x=52°-82°
3x=-30°
x=10

Thank you!!!!!!!!!!!!!!!!!

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[匿名]

2010-05-02 3:48 am

冇呀,但你條數好似寫錯左
唔係52同82
係57同82

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魔龍帝齊格益力多

2010-05-02 12:57 am

2x+82=x+57(對頂角)
x =57-82
x =-25

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用戶7639

2010-05-01 6:36 am

82度和57度有冇mark錯位置???

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