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borishaifa [10]
3 years ago
13

Please hurry I need the answer

Mathematics
1 answer:
timama [110]3 years ago
7 0

Answer:

4.12

Step-by-step explanation:

A^2+b^2=c^2 so 8^2+b^2=9^2 so 64+b^2=81 so b^2=17 so b=4.12

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