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Sav [38]
3 years ago
7

Please answer this question now

Mathematics
1 answer:
Luda [366]3 years ago
4 0

Answer:

3

Step-by-step explanation:

You know that angle Y is a right angle because XY is the radius and YZ is a tangent to the circle. So, you can use the pythagorean theorem to find the third side:

XY^2+4^2=5^2

XY^2+16=25

XY^2=9

XY=3

Hope this was helpful! :)

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