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12 January, 13:54

A quadrilateral has three angles that measure 90º, 80º, and 74º.

Write an equation to find the 4th angle measure (x).

Find the unknown angle measure, showing your work.

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Answers (2)
  1. 12 January, 16:47
    0
    I did the math and x=116
  2. 12 January, 17:43
    0
    360-90-80-74=your answer since a quadrelaterial needs 4 sides. 116 degrees would be your answer
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