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larisa86 [58]
3 years ago
14

Anyone know the answer?

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
4 0

Answer:

They will need √161 feet, or about 12.69 feet of fencing. √161 is irrational because 161 is not a perfect square.

Step-by-step explanation:

{8}^{2}  +  {x}^{2}  =  {15}^{2}

64 +  {x}^{2}  = 225

{x}^{2}  = 161

x =  \sqrt{161}  = 12.69

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