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= 294
b) Llingkaran1 = 22/7 x 7 x 7
= 154
c) Llingkaran2 = 22/7 x 3,5 x 3,5
= 38,5
d) Larsiran = 294 - (154 + 38,5)
= 294 - 192,5
= 101,5
semoga membantu!!!!