Stage 3 of GEOMGBITS: seven trials in area by decomposition. Every shape here is a rectangle in disguise, half of one, or a sum of pieces you already know — so you cut rather than memorise. Each figure is drawn to scale, with the leverage point that cracks it.
Each trial is locked until you clear the one before it. Every level scores out of 1000 — 600 for accuracy, 400 for speed — so speed alone can't clear the bar; you have to solve most problems, and quickly. Reach 650 to unlock the next.
You can reduce any of these to a rectangle or a triangle — halve the frame, straighten the lean, average the taper, take half the diagonals, or cut a shape into pieces and add. No formula sheet required.