Determine if part is overhanging?

Hi folks! I've been racking my brain on this problem and can't figure a solution. Imagine a baseplate with a part on top. I'm trying to determine if the part is overhanging the base instead of being fully in contact.

A part's position doesn't change on rotation, but it can change from being fully in contact to overhanging if the part is a rectangular shape. Comparing the positions of the baseplate and part is definitely the right way to go, but I can't figure out to determine whether to use the X or Z size in my calculation since it changes on rotation.

Any help is greatly appreciated!

Here's a simple solution. Will print validity of part as you move/rotate it.

local base = workspace.Base
local obj = workspace.Part
local pos
local ori;

while true do
	if(pos~=obj.Position)or(ori~=obj.Orientation)then
	pos=obj.Position
	ori=obj.Orientation
	local valid=false
	local baseX =math.abs(base.Position.X)+(base.Size.X/2)
	local baseZ =math.abs(base.Position.Z)+(base.Size.Z/2)
	local objX, objZ;
	if(math.abs(obj.Orientation.Y)==90)then
		--Xsize is Zdir
		objX =math.abs(obj.Position.X)+(obj.Size.Z/2)
		objZ =math.abs(obj.Position.Z)+(obj.Size.X/2)
	else
		objX =math.abs(obj.Position.X)+(obj.Size.X/2)
		objZ =math.abs(obj.Position.Z)+(obj.Size.Z/2)
	end
	if(baseX>=objX)and(baseZ>=objZ)then
		print(true)
	else
		print(false)
	end;end
	wait()
end