▽Futility Closet - An idler's miscellany of compendious amusementsFutility Closet ●04/19 01:14 04/18/2025 UPDATE: Reader Catalin Voinescu has a simpler solution:“Consider: the banner has the same areas of red and white as a banner of the same size with a red L of the same thickness as the cross along two of the edges. (Cut the original banner in four and rearrange the fragments.) In this case, the white area is a rectangle. The problem states that it must be half of the area of the flag, t