Penjelasan dengan langkah-langkah:
Sn = n/2 × (2a + (n - 1)b)
S11 = 11/2 × (2(15) + (11 -1)2)
= 11/2 × (30 × 20)
= 11/2 × 50
= 11 × 25
= 275 kg
Opsi C
275 kg,
ㅤ
cara selengkapnya ada di gambar.
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Penjelasan dengan langkah-langkah:
Sn = n/2 × (2a + (n - 1)b)
S11 = 11/2 × (2(15) + (11 -1)2)
= 11/2 × (30 × 20)
= 11/2 × 50
= 11 × 25
= 275 kg
Opsi C
275 kg,
ㅤ
ㅤ
cara selengkapnya ada di gambar.
Penjelasan dengan langkah-langkah: