Step 1: Opening a Part in Solidwoks.
First you need to get into solidworks by opening it, if you have downloaded it already. Then you need to open a new part.
Step 2: Opening Sketch.
Now you need to select front plane and then hit sketch.
Step 3: Getting a Sketch Picture.
To get a sketch picture you need to pick any picture off the internet
Step 4: Splineing the Edges
You now need to spline the parts of the helmets.
Step 5: Extruding the Helmets
You will now go to extrude boss base and click on the parts you want to extrude then you are finished.