What’s the side and angles?

I think that the side length is 25.8 and the angle length is 180 degrees

Step-by-step explanation:

I'm not 100% sure but all I did was add the side lengths to get 25.8 (8.6 + 8.6 + 8.6) and the angle length is 180 degrees (because all triangles has to equal to 180 degrees and 60 plus 60 plus 60 is equal to 180).

There you go. Just to remind you that I'm not 100% sure about this answer, but hope this helps.