Triangle part for centerboard?

So I am putting the boat back together so I can finally go for a test sail. I decided to not spend all summer working on the boat and do more restoration and painting in the fall and enter.
The kid I bought the boat from had taken it all apart so I am trying to get it figured out.
So where does the triangle part go?
Is the handle mounted at the correct position?
I installed the black rubber washer, there was a new on in a box of hardware.
The kid I bought the boat from had taken it all apart so I am trying to get it figured out.
So where does the triangle part go?
Is the handle mounted at the correct position?
I installed the black rubber washer, there was a new on in a box of hardware.