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alas segitiga = 14-8 = 6 cm
Luas segitiga = 1/2 x a x t
luas segitiga = 1/2 x 4 x 6 = 12 cm
Luas persegi panjang = 14 x 2 = 28 cm
luas gabungan = 12+28 = 40 cm
Keliling gabungan = 5+5+4+4+2+2+14 =36 cm
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