Question

Each page of a photo album holds three rows of four square photos. The area of each photo is 25 cm². There is 2 cm space between photos and a 3 cm border around the group of pictures. What are the dimensions of one page of the photo album?

Answer 1

32 cm wide by 25 cm tall. Since each photo is square and has an area of 25 cm², that means that the length of each edge of the photos is 5 cm. So the length of a page (2 border gaps + 4 photos + 3 spacing gaps) is 2*3 + 4*5 + 3*2 = 32 cm The height of a page (2 border gaps + 3 photos + 2 spacing gaps) is 2*3 + 3*5 + 2*2 = 25 cm So the page size is 32 cm x 25 cm