



 
Hi, If the volume of a kilogram of cake is $3800 \mbox{cm}^3$ what is the volume of a five kilogram cake? The shape of the cake is a cylinder and the volume, $V$ of a cylinder is given by \[V = \pi r^2 h\] where $r$ is the radius and $h$ is the height. You know the volume and the height so substitute these into the expression above and solve for r. Penny  


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