From triangle PQR is P = 90°, PQ = 15.5 dm and PR = 11,7 dm. Calculate QR in dm. Round to one decimal.
1 answer:
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Use the distance formula:
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Plug in the given coordinates:
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Simplify:
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You can leave it as:
or in decimal form as: 7.2
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Plug in the given coordinates:
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Simplify:
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You can leave it as:
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