Explanation:
yes, it would be an isoceles triangle (with 2 sides being equally long).
it would be a reissue high and narrow triangle, with the very short side (2) connecting the 2 sides of 8.
in general, 3 lines can only make a triangle, if the sum of lengths of any pair of these lines is always longer than the third line.
in our case :
8+2 > 8 true
8+8 > 2 true
so, yes, they can be a triangle.
example for 3 sides not making a triangle :
2, 3, 6
as
2+3 < 6