luas segitiga + luas jajar genjang
= 1/2 x 4 x 8 + (4 x 3)
= 16 + 12
= 28 cm²
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luas segitiga + luas jajar genjang
= 1/2 x 4 x 8 + (4 x 3)
= 16 + 12
= 28 cm²