September 2018 1 17 Report
Tolong dikerjakan ya,,
Luas segi 12 beraturan adalah 432  cm^{2} . Keliling segi 12 beraturan tersebut adalah....
A. 144 \sqrt{2 + \sqrt{3} } cm
B. 144 \sqrt{2 - \sqrt{3} } cm
C. 72 \sqrt{2 + \sqrt{3} } cm
D. 72 \sqrt{2 - \sqrt{3} } cm
E. 12 \sqrt{128 - \sqrt{3} } cm

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