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What's the sum of Q I need a lot of help

What's the sum of Q I need a lot of help-example-1
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User Krichard
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1 Answer

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Phytagoras

20² = 4² + Q²

Q² = 20² - 4²

Q² = 400 - 16

Q = √384

Q = √64 x 6

Q = 8 √6 In

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