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Drupady [299]
3 years ago
5

Quadrilateral ABCD is a square. if m

Mathematics
1 answer:
olganol [36]3 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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Aleonysh [2.5K]

Are you looking for the value of x?

We can complete the square/factor:

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By the zero product property rule, we have two equations, x+10=0 and x-3=0.

So the zeroes of x are -10 and 3

Hope this helped. Comment below if this didn't make sense.

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