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L. Lingkaran = 22/7 x 7 x 7 = 154cm2
jadi luas bangun yg diarsir adalah
L.persegi - L.lingkaran = 196 - 154 =42cm2
luas persegi=14.14=196 cm^2
luas lingkaran=22/7.7.7=154 cm^2
L=196-164=42cm^2