A tent is in the shape of a cylinder surmounted by a cone. It is given that the radius of the base of the tent is 7 m, and the volume of the air inside the tent is 154 m3. Find the height of the cone (in metres), if it is half the value of the height of the cylinder.
1
0.3
2
1.5
3
1.7
4
0.2
5
0.43