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bangun 2 adalah trapesium
luas 1 : p × l
: 44 × 43
: 1.892 cm²
luas 2 : (15 + 43) × 38 ÷ 2
: 58 × 38 ÷ 2
: 2.204 ÷ 2
: 1.102 cm²
luas total : 1.892 + 1.102 = 2.994 cm²