Now
you'll draw the windshield for the shuttle. Use the
Line command, and draw three polygons
like the ones below. 
Now you will mirror the entire
drawing. But first, you must delete the mirror line
that you made at the beginning of the drawing.
After deleting the line, select everything but the
rectangle you drew at the beginning. Now hit Mirror
X
, then click the middle of the
rectangle. When it asks if you want to copy while
mirroring, hit Yes. Now the drawing should look
like this:

Click the NEXT button to go to the
next step.