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L. II (jajargenjang) = 25 ×17 = 425 cm^2
jadi 550 + 425 =
4. L. I (persegi panjang) = 42 x30 = 1.260
L. II segi3 = 30 × (59 -42) /2 = 30 ×17 /2 = 255
jadi 1260 +255
jadikan jwbn tercerdas