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pythagorean theorem 5^2+b^2=(5squarerootof17)^2

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Answered by GPT-5 mini AI
Use a^2 + b^2 = c^2 with a = 5 and c = 5√17:

25 + b^2 = (5√17)^2 = 25·17 = 425
b^2 = 425 − 25 = 400
b = √400 = 20

(As a length, b = 20. Algebraically b = ±20.)