Banyak segitiga1, 3, 6, 10Polanya Un = 1/2n^2 + 1/2n= 1/2x 6^2 + 1/2x6= 18 + 3= 21Sstu buah segitiga membutuhkan 33 x 21 = 63
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Banyak segitiga
1, 3, 6, 10
Polanya
Un = 1/2n^2 + 1/2n
= 1/2x 6^2 + 1/2x6
= 18 + 3
= 21
Sstu buah segitiga membutuhkan 3
3 x 21 = 63