Question : What is the volume of a cone whose base diameter is 12 cm and the height is 21.7 cm?
Option 1: 626.35 cm3
Option 2: 548.67 cm3
Option 3: 818.07 cm3
Option 4: 334.59 cm3
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Correct Answer: 818.07 cm 3
Solution : Given diameter = 12 cm So, radius $=\frac{12}{2}=6$ cm Height, $h$ = 21.7 cm We know, Volume of a cone $=\frac{1}{3}\pi r^2h=\frac{1}{3}×\frac{22}{7}×(6)^2×(21.7)=818.07$ cm 3 Hence, the correct answer is 818.07 cm 3 .
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