September 2018 1 55 Report
Sebuah kerucut dibentuk dari karton yang tampak seperti gambar. besar sudut AOB = 120 derajat dan jari-jari OA = 30 cm. jika \pi = 3,14 maka tinggi kerucut adalah...
a.√500 cm
b.√800 cm
c.√1.000 cm
d.√1.300 cm
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