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44 = 22/7 × d
44 = 22/7d
d = 44/22 × 7
d = 14 cm
r = 7 cm
t = √25² - 7²
= 24 cm
V kerucut = 1/3πr²t
= 1/3 × 22/7 × 7 × 7 × 24
= 1.232 cm³