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A quadrilateral has congruent side lengths. 2 opposite angles have measures of 100 degrees. The other 2 opposite angles have measures of 70 degrees and (5 x) degrees. What is the value of x

Respuesta :

Medunno13

Answer:  18

Step-by-step explanation:

Angles of a quadrilateral add to 360 degrees, so

[tex]100+100+70+5x=360\\\\270+5x=360\\\\5x=90\\\\x=18[/tex]

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