Jawaban:
d1 : d2 = 3 : 4
d1 = 3X, d2 = 4X
s= 20/4 = 5
X = 2
jawabannya D. 2
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Jawaban:
d1 : d2 = 3 : 4
d1 = 3X, d2 = 4X
s= 20/4 = 5
X = 2
jawabannya D. 2