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tensa zangetsu [6.8K]
2 years ago
9

Can someone help me with this please?

Mathematics
1 answer:
GarryVolchara [31]2 years ago
7 0

Answer:

16.49

Step-by-step explanation:

21^2 - 13^2 = 272

square root 272 = 16.49

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Step-by-step explanation:

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