4. Find the volume of the Christmas tree

In the season of Christmas, everyone decorated their home with a  Christmas tree, stars and gifts. The height and the base radius of the Christmas tree is 84 \(cm\) and 15 \(cm\). Find its volume if \(1 \ cm^3 = 0.4 \ g\).

 

 

Volume of the Christmas tree \(=\)  \(g\)