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L = 22 x 4 x 28
L = 2464
d = 28 m
Dijawab :
Luas = 1/4 . π . d²
= 1/4 . 22/7 . 28 . 28
= 1/4 . 2464
= 2464/4
= 616 m²
Itu jawabannya.