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The diagram consists of a rhombus with sides AD, DB, BC, and CA. Two right angled triangles that form this rhombus are DAB and ACB.

In the figure above, is the area of triangular region ABC equal to the area of triangular region DBA ?

  1. (AC)2 = 2(AD)2
  2. Δ ABC is isosceles.

答案:C
问题:你好老师,请问这道题为什么选C 查看答疑

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