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Verified answer
Luas lingkaran = phi x r²Diketahui;
r = 63 : 2 = 31,5 cm
phi = 22/7
Penyelesaian ;
L = phi x r²
= 22/7 x 31,5²
= 22/7 x 992,25
= 3.118,5 cm²
Maaf kalau salah, semoga membantu :)