Answer:
Tbh I am not sure but it's a semi-circle prism or like semi cylinder (I think) but usually semi-circles themselves will not tessellate bc circles have no angles and when u line them up next to each other there will be gaps between them and one of the tessellation rules is that no overlapping or gaps so yeah
I am sorry lol if that's all wrong but my answer is no, I don't think that this figure is a tessellate plane
