Luis shoe box is 14in long. He places pinhole p in the center of the front which is 7 1/2in x 5 1/8in. If he needs to leave a half inch border on the film, what is the largest image he can make?

Question

i wrote the whole problem in the thingy

Answer 1

The length of the box doesn’t seem to be relevant, because it’s the size of the image that matters, not the object being photographed. The half-inch border reduces the dimensions of the end of the box by an inch. So the largest image is 6½” by 4⅛” (26.8125 sq in).