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4 December, 03:35

A quadrilateral has angles that measure 87°, 69°, and 104°. What is the measure of the fourth angle?

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Answers (2)
  1. 4 December, 05:59
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    The answer should be ... 100
  2. 4 December, 06:58
    0
    Sum of angles of quadrilateral = 360

    87 + 69 + 104 + x = 360

    156 + 104 + x = 360

    260 + x = 360

    thus, x = 100

    Thus, the measure of the fourth angle is 100 degrees
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