Question

I posted this question yesterday. I need to find the perimeter of a shape with two unknown sides. The sides I have are 3x, 2x, 6x-5, 5x-2 . They do not give me total perimeter . I get 1 Mark for each missing side length, 1 Mark for each calculation, and 1 Mark for correct perimeter

Answer 1

looks to me like all 4 sides are unknown.
If those are all the sides, then the perimeter is just their sum, as for any polygon:

3x + 2x + 6x-5 + 5x-2 = 16x-7

I suspect there is something you are not sharing...

Answer 2

you are given four sides with two missing ... so a hexagon
... concave or convex?
... not regular, based on the given values

there does not seem to be sufficient information