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1437.33 = 4/3 x 22/7 x r³
1437.33 x 3 x 7 = 4 x 22 x r³
30183.93 = 88r³
r³ = 30183.93 / 88
r³ = 343
r = √343 = 7 cm
#Lp = 4πr²
= 4 x 22/7 x 49
= 616 cm²