As follows:
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maths~~
2009-10-30 2:17 am
回答 (2)
2009-10-30 2:21 am
✔ 最佳答案
p + ㄥCAB = p + q = 360So Ⅰ is false and Ⅱ is true
q + ㄥCDY = q + r = 180
Ⅲ is true
2009-10-30 2:47 am
tony岩架啦, 我詳細d講一次啦
p + ㄥCAB = p + q = 360 < (因為平行4邊形對角等性, 所以角cab = 角Q)
So Ⅰ is false and Ⅱ is true <
(1好明顯錯= =, 角p 必須加一隻角係大過90度先有機會360度 , 而R好明顯係銳角 < 90度)
q + ㄥCDY = q + r = 180 < (因為角cdy = 角R , 錯角, 所以角 q + 角R = 180度)
Ⅲ is true
所以總結 I + III IS TRUE
p + ㄥCAB = p + q = 360 < (因為平行4邊形對角等性, 所以角cab = 角Q)
So Ⅰ is false and Ⅱ is true <
(1好明顯錯= =, 角p 必須加一隻角係大過90度先有機會360度 , 而R好明顯係銳角 < 90度)
q + ㄥCDY = q + r = 180 < (因為角cdy = 角R , 錯角, 所以角 q + 角R = 180度)
Ⅲ is true
所以總結 I + III IS TRUE
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091029000051KK01063