Answer:
x = 106
Explanation:
You want the measure of the unknown angle (x°) in the quadrilateral with angles 47°, 138°, and 69° given.
Angle sum
The sum of angles in a quadrilateral is 360°, so the measure of x is ...
x = 360 -47 -138 -69 = 106
Angle x° is 106°.
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