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anzhelika [568]
3 years ago
9

Help me with this one please

Mathematics
1 answer:
satela [25.4K]3 years ago
6 0

Answer:

15

Step-by-step explanation:

a² + b² = c²

9² + 12² = c²

81 + 144 = c²

c² = 225

\sqrt{c^2} =\sqrt{225}

c = 15

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