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    How to prove that 2 triangles are congruent?

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    Guest
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    How to prove that 2 triangles are congruent?

    مُساهمة من طرف Guest في الجمعة مارس 20, 2009 2:02 am

    If you were asked to prove that 2 given triangles are congruent,you should make sure that one of the following methods is satisfied:
    -By returning to the given,you can prove that 2 sides in both triangles are equal,and each angle enclosed by these 2 sides in both triangles is equal to the other,we call this method "side-angle-side"or S.A.S.
    -Another method is to prove that 1 side in both triangles is equal and the angles corresponding to it in both triangles are equal, we call this method "angle-side-angle"or A.S.A.
    -A third method is to prove that all the corresponding sides in both triangles are equal, we call this method "side-side-side"or S.S.S.
    -Special case:If the 2 triangles were right triangles,it is enough to prove that the hypotenuse(side opposite to the right angle) is equal in both triangles, plus proving 1 angle or side equal in both triangles.


    عدل سابقا من قبل rabih sarieddeen في الجمعة مارس 20, 2009 2:07 am عدل 2 مرات (السبب : some mistakes during typing)

      الوقت/التاريخ الآن هو الإثنين ديسمبر 17, 2018 11:00 am