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IRISSAK [1]
3 years ago
9

Please help me with my question Thank you :))BRAINLIEST AVAILABLE

Mathematics
1 answer:
lara [203]3 years ago
4 0
P=4πlr²
r²=P/4πl
r=√(P/4πl)= 1/2*(√(P/πl)
Answer is A
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