Q4 of 75 Page 233

If the volume of a right circular cone of height 9 cm is 48 π cm3, find the diameter of its base

Height (h) = 9 cm

Let the radius be r


Volume = 48 cm3


r2h = 48 π


r2 = 16 cm


r = 4 cm


Diameter = 2r = 2 * 4


= 8 cm


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