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I dont understand this question pleade help
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I dont understand this question pleade help

I dont understand this question pleade help-example-1
User Jeffers
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1 Answer

2 votes

Answer:

8.9

Explanation:


{a}^(2) + {b}^(2) = {c}^(2) \\ {(8)}^(2) + {b}^(2) = {(12)}^(2) \\ 64 + {b}^(2) = 144 \\ \sqrt{ {b}^(2) } = √(80) \\ b = 4 √(5) \: or \: 8.9

User Trapsilo Bumi
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