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= 14²
= 196 cm²
jari - jari = diameter : 2
= 14 : 2
= 7 cm
Luas lingkaran = π r²
= 22/7 x 7 x 7
= 22 x 7
= 154 cm²
Luas yang diarsir = 196 cm² - 154 cm²
= 42 cm² ( d )