1. The problem statement, all variables and given/known data Hi all hope this is posted in the right area, attached is an image showing what i have to figure out and I'm hoping theres a formula to do this instead of guess and check which I hope to avoid in future. Assuming all angles are 90° unless stated I wish to move the red line north-west a certain distance to create equal areas of the two shapes. As the line moves north-west the total area of both lots added together becomes larger. 2. Relevant equations Sadly i don't know any relevant equations that arent just basic knowlodge my hope is to get an equation where i substitute certain values for future problems. 3. The attempt at a solution My attempts aren't even worth mentioning my crazy attempts at figuring it out result in disaster all i know is the answer must be be 1.xx Thanks in advance for any assistance with this problem I have.