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The height of a cone is 14 cm and the area of its base is 321 cm square. Find the volume. |
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Answer» Answer: v = 1496 cm^3 Step-by-step explanation: HEIGHT: 14 cm Area of base: 321 cm^2 Volume of CONE= (1/3)πr^2h Area of base: πr^2 π = (22/7) (in this cause we will SET PI = 22/7) we just need to find the radius to plug it in to the volume formula πr^2 = 321 cm^2 (22/7)r^2 *(7/22)*(321cm^2) r = (102cm^2) ^ (1/2) r = 10.995..cm r = 10.10 cm Volume = (1/3)πr^2h h = 14 cm r = 10.10 cm v = (1/3)π(10.10cm)^2(14 cm) v = 1496 cm^3 |
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