Answer:
1526.04
Explanation:
Volume of sphere = 4/3πr³
Volume of hemisphere = 2/3πr³
Diameter = 18
Radius (r) = 18 ÷ 2 = 9
2/3πr³
2/3(3.14)(9)³
2/3(3.14)(729) = 1526.04
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