volume kerucut 628 cm3, jari-jari 10 cm, pi 3,14. hitung tinggi kerucut!
Matematika
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Pertanyaan
volume kerucut 628 cm3, jari-jari 10 cm, pi 3,14. hitung tinggi kerucut!
2 Jawaban
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1. Jawaban Kiyeon
Volume kerucut :
1/3 × phi × r^2 × t
628 = 1/3 × 3,14 × (10)^2 × t
628 = 1/3 × 3,14 × 100 × t
628 = 1/3 × 314 × t
628 × 3/1 = 314 × t
1884 = 314 × t
t = 1884/314
t = 6cm
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2. Jawaban anggidamayanti
V= 1/3πr2 x t
628 = 1/3 x 3.14 x 10 x 10 x t
628 = 1/3 x 314 x t
628 x 3 = 314t
1884 = 314t
1884 / 314 = t
6 = t