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Verified answer
6.Sisi miring
= akar (sisi alas kuadrat + sisi tinggi kuadrat)
= akar (12 kuadrat + 16 kuadrat)
= akar (144 + 256)
= akar 400
= 20 cm
Keliling segitiga
= s + s + s
= 12 + 16 + 20 = 48 cm
Luas segitiga
= 1/2 x a x t
= 1/2 x 12 x 16
= 96 cm2
7.
Alas segitiga = 13 - 7 = 6 cm
Luas segitiga
= 1/2 x a x t
= 1/2 x 6 x 6
= 18 cm2
Bintang 5 ya
luas = 1/2 a x t = 1/2 x 12 x 16 = 96 cm²
7. luas = 1/2 x 6 x6 = 18 cm²