How to create the 3d object?

[SimonPlatten]

Sorry the title is not great, I am trying to create a solid object using the sketch:

The sketch shows the ribs and I want o create a model from the sketch with ribs inside it.  The top curve and the flat bottom show the thickness of the model and I would like to extend these so it creates an object that reduces to the point top left.  I've tried over and over and I'm really not sure how to achieve this?

 

[Warmingup1953]

Can you share your file?

[SimonPlatten · Accepted solution]

There really is nothing to share, however I've found a tutorial on YouTube, so the problem has now been resolved, the solution was to draw a line on a sketch at the angle for the desired cone then use the Solid/Create/Revolve using the angled line and the direction of the cone.