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D = 5 cm -----------> r = 1/2D = 2,5 cm
t = 14 cm
5 cm³ habis dalam 5 menit
Ditanya :
Lama lilin habis
Jawab :
Volume = πr²t
Volume = 22/7 x (2,5 cm)² x (14 cm)
Volume = 275 cm³
Waktu
= Volume : 5cm³/menit
= 275 cm³ : 5 cm³/menit
= 55 menit