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slava [35]
3 years ago
6

A quadrilateral has congruent side lengths. 2 opposite angles have measures of 100 degrees. The other 2 opposite angles have mea

sures of 70 degrees and (5 x) degrees. What is the value of x? 14 15 16 17.
Biology
1 answer:
storchak [24]3 years ago
5 0
It should be 18 because:
100 x 2 = 200
200 + 70 = 270
360 - 270 = 90
90/5 = 18
So x = 18
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