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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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ayekrystal

The measure of the fourth interior angle in the quadrilateral is 145

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

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