Jawaban:
55
Penjelasan dengan langkah-langkah:
bilangan segitiga ke 10 =un=2n 1/2.n(n+1).n=u10=10/2n(10+1)=5.11=55
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Jawaban:
55
Penjelasan dengan langkah-langkah:
bilangan segitiga ke 10 =un=2n 1/2.n(n+1).n=u10=10/2n(10+1)=5.11=55