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(14*14)-(phi*r2)
196-154:42 cm
luas persegi = s × s
= 14 × 14
= 196
luas lingkaran = π × r(pangkat 2)
= 22/7 × 7 pangkat 2
= 22/7 × 49
= 22 × 7
= 154
jadi, luas yang diarsir = 196-154 = 42