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30 March, 05:50

In triangle CDE, two triangles add to be 100 degrees. The third angle must be 80 degrees.

True or false?

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Answers (2)
  1. 30 March, 07:49
    0
    True, all triangles equal 180 degrees
  2. 30 March, 09:29
    0
    Sum of angles in any triangle = 180⁰.

    If sum of two angles give 100⁰, them third angle (180-100) = 80⁰.

    So, the answer is true.
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