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Drupady [299]
2 years ago
5

Quadrilateral ABCD is a square. if m

Mathematics
1 answer:
olganol [36]2 years ago
4 0
The answer is B. 18

Explanation:

We know that a square has 4 right angles. A right angle is 90°.

5x° = 90°
5(18)° =90°
90°=90°

Hope this helps some
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