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Verified answer
Dimisalkan menjadi 2 bangun1.
persegi panjang 24 cm x 20 cm
Luas = 24 x 20
L = 480 cm²
2.
Persegi panjang 18 cm x (40-20) cm
Luas = 18 x 20
L = 360 cm²
Luas keseluruhan
= 480 + 360
= 840 cm²
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