Next step, create a 3D object for the rectangular shape. The details of 3D sketch
are shown in screen capture below.
Select the push/pull object from left and place it on the rectangle face drawn in
previous slide. When the face is highlighted, use pull on mouse to form the shape
shown above. The 3 dimensions are shown in colors Red, Green and Blue. We placed
the rectangle in green and red dimensions and used pull to create third dimension
shown in blue color.