Make solid from curves

Rhino Rhino for Mac
1

Hi there, I was wondering how can I make a solid object from the curves. Thank you in advance for your help.jav101_project3.3dm (3.3 MB)

2

Hello - see

https://www.rhino3d.com/tutorials

In this case, Join the curves into closed loops if they are not joined.
From the Solid menu, choose Extrude planar curve > Straight.

-Pascal