❒Keliling segitiga
K = s + s + s
K = 6 + 9 + 11
K = 15 + 11
K = 26 cm
❒Luas segitiga
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❒Keliling segitiga
K = s + s + s
K = 6 + 9 + 11
K = 15 + 11
K = 26 cm
❒Luas segitiga