Yes because a triangles are is 1/3 b x h and a rectangles area is just b x h. The triangle would get smaller because it doesn’t have one corner, and the rectangle would keep a constant size.
There are nine boxes in each pack. Garth bought 2 packs, all together containing 18 boxes. So 18÷2=9. Rico bought 4 packs, so 36 boxes divided by 4 equals 9. And so on. Your answer is 9 boxes = 1 pack.
