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omg986513

Help me plz

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  • Danny1210
    2020-06-10 22:19:09
    用tan 50度= H over AD 揾h h=13.1093 再用畢氏定理揾ab
  • Danny1210
    2020-06-10 22:19:52
    if you have anything want to ask , you can whatsapp me 54057046 . I will respond you and help you as fast as possible
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