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Liono4ka [1.6K]
2 years ago
11

Please help me :):)):):

Mathematics
1 answer:
Verdich [7]2 years ago
3 0

Answer:

12

Step-by-step explanation:

5^2 + b^2 = 13^2

25 + b^2 = 169

169-25= 144

take the square root of 144

answer: 12

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