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What’s the length of QR?

What’s the length of QR?-example-1

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Answer:

QR = 5.9

Explanation:

QR = √(RP^2 - QP^2)

QR = √((7.6)^2 - (4.8)^2) = √(57.76 - 23.04) = √34.72 ≈ 5.9

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