Jawaban:
a = 6 cm
U3 = 24 cm
U3 = a r pangkat n - 1
6 r pangkat 2
24/6 = r2
4 = r2
2 = r
S6 = a(r pangkat n -1)
6(2 pangkat 6 -1)
6(12 -1) = 6 x 11
= 66/r -1
= 66/2-1
= 66
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Jawaban:
a = 6 cm
U3 = 24 cm
U3 = a r pangkat n - 1
6 r pangkat 2
24/6 = r2
4 = r2
2 = r
S6 = a(r pangkat n -1)
6(2 pangkat 6 -1)
6(12 -1) = 6 x 11
= 66/r -1
= 66/2-1
= 66