find the volume of a right circular cone of base 616cm2 and height 9cm
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saurabhguptavip8nu7l:
but it is the area of base is given
we can substitute the value in vol. of cone formula
base is circle
area of circle is πr^2
but you have to find radius by using formula pi r square
no need
they only asked to find volume but not radius
but the formula of volume of cone is =1/3pi r2h
radius is not given
pi r2 is 616
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Answer
Volume of cone is 1/3*π*r^2*h
height is given, find radius,
area of circle = π*r^2
616=22/7*r^2
616*7/22=r^2
196=r^2
Root 196=r.........Square becomes root
14=r,, radius
now put radius and height in formula for volume of cone,
V=1/3*22/7*14*14*9
1/3*22/7*1764
V=1848 cm^3,, Answer
Good luck
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