
Here we go ~
- h = height of cone = 10 cm
- r = radius of cone/sphere = ??
- Volume of cone = 270 pi cm³
Volume of cone is :







Now, let's calculate volume of solid sphere with same radius is ~





So, volume of the solid sphere in terms of pi is :
<u>note</u> : the solid figure attached below the cone is a hemisphere, so if the volume of hemisphere is asked then just dovide the result for sphere by 2. that is :
It would take one person twice the time so a) 12 hours
12/3 is 4 so b) 4 hours
The value of y will probably be 4.