How could I check if my Gui's size is at a certain amount?

In my script I have it check if the textlabel size is at a certain amount however it is saying that UDim2 is not a valid member of UDim2? How can I check to see if my Textlabel is the size I want it to be before it does something? It is a local script.

local x = 3	
local cow = ("x/100,9,0,23")
		wait(0.01)
		if script.Parent.Size.UDim2 <= script.Parent.Size.cow then
print("Works")
end

Try changing it to if script.Parent.Size rather than script.Parent.Size.UDim2 like this

local x = 3 
local cow = ("x/100,9,0,23")
        wait(0.01)
        if script.Parent.Size <= UDim2.new(put udim2 stuff here) then
print("Works")
end