Find the mean of all the internal angles of a quadrilateral.


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Answer:

90°

Step by Step Explanation:
  1. We know that the sum of all the four internal angles of a quadrilateral must be 360°.
    Thus, the mean of all the internal angles of a quadrilateral =  
    360
    4
     = 90
  2. Hence, the mean of all the internal angles of a quadrilateral is 90°

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