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Verified answer
Luas = 1/4 x π x d²616 cm² = 1/4 x 22/7 x d²
616 cm² = 22/28 x d²
d² = 616 x 28/22
d² = 784
d = √784
d = 28 cm
Jadi, panjang diameter lingkaran tersebut adalah 28 cm