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pokaa pokaa
  • 15-03-2017
  • Mathematics
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amayacbeau
amayacbeau amayacbeau
  • 15-03-2017

r = 6√2

You can use the Pythagorean theorem to solve this. 
17² + b² = 19²
289 + b² = 361
b² = 72
b = √72
b = 6√2 or 8.49

Hope this helps! :)

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