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9 March, 12:17

A quadrilateral has interior angle measures of 65°, 75°, and 121°. What is the measure of the fourth interior angle in the quadrilateral?

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  1. 9 March, 12:19
    0
    Sum of quadrilateral is 360

    so 360 - (65 + 75 + 121)

    =360 - 261

    = 99

    answer: 99 is the measure of the fourth interior angle in the quadrilateral
  2. 9 March, 12:32
    0
    The measure of the fourth interior angle in the quadrilateral is 145
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