1.What 3-D CAD functions could be used to create a wire coat hanger?
The coil and the sweep function.
2. What feature would be used to create a 3-D representation of a spindle that was created on a wood lathe?
I would use the revolve feature.
How does a 3-D CAD solid model program keep track of the changes that are made to an object?
They keep track of the changes on the bottom left browser.
4. If a mistake is made, how does the user make a correction without using the undo function?
Go back and edit the sketch or feature by right clicking and selecting the edit sketch feature.