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? 14 15 16 17.

asked Jan 14, 2023 108k views

14 votes

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9 votes

It should be 18 because:
100 x 2 = 200
200 + 70 = 270
360 - 270 = 90
90/5 = 18
So x = 18

Xiangru Lian answered Jan 16, 2023

6.9k points

7 votes

(A.) 14

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Jarice answered Jan 19, 2023

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