L lingkaran = πr²² = 22/7 x 7² = 154
L yg diarsir = 196-154 = 42 cm²
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L lingkaran = πr²² = 22/7 x 7² = 154
L yg diarsir = 196-154 = 42 cm²
14 x 14 - 22/7.7.7
196 - 154
42 cm^2