complete a formal proof:
Proof that the median of a trapezoid is parallel to each base
anyone can help me?
Who can help me to proof this??
2006-10-26 11:25 pm
回答 (1)
2006-10-26 11:45 pm
✔ 最佳答案
information is not enough. but to prove a line is parallel to its base. If the question give the angles info. then if you can prove the sum of the opposite angles is 180 degree or the corresponding angles are equal. then , the line is // .
Hope it can help!
收錄日期: 2021-04-26 17:30:16
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https://hk.answers.yahoo.com/question/index?qid=20061026000051KK01771