The formula for volume of a sphere is To get radius from diameter, we must divide it by 2. 10/2=5, meaning the radius is 5 in. Now, we just need to plug the values into the equation.
The general formula for the total surface area of a regular pyramid is T. S. A. =12pl+B where p represents the perimeter of the base, l the slant height and B the area of the base.