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What is the value of x in the quadrilateral shown below?

A. 80°
B. 70°
C. 60°

What is the value of x in the quadrilateral shown below? A. 80° B. 70° C. 60°-example-1
User Dotvav
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1 Answer

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A quadrilateral has 4 angles that add up to 360 degrees. So, to solve for x:

85+150+55=290
360-290= 70
X= 70 degrees
User Wells
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