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Bangun datar 2 = segitiga
Luas 1 = 57 kali 28 = 1596 cm
Luas 2= 51 - 28 = 18
18 kali 23 : 2= 207 cm
Lg= 1596 + 207 = 1803 cm
2. Bangun datar 1 = jajar genjang
Bangun datar 2 = jajar genjang
Luas 1 = 65 kali 31 = 2015 cm
Luas 2 = 62 - 31 kali 65 = 2015 cm
Lg = 2015 + 2015 = 4030 cm
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