Now you have a sphere. Right now it's only a simple object, so it's time to turn it into something we can mess with. In this case an Editable Mesh. Click the Modify tab and then right click the the item called Sphere, and select Editable Mesh.
In this tutorial I will be showing a basic way of modelling that most people use. So lets get started by creating a box with the same values as shown in fig 1.a.