It is like a math question from school. Take it one step at at time. From the sounds of things Sandy has it correct, and it sounds like you have figured it out too. The "crosscut" phrase was probably what threw you. I'd have said "Cut 6.25" squares from the strip." Then gone on to tell you to cut the square into 4 equal triangles by cutting diagonally, making a huge X from corner to corner, both directions. Hopefully giving you a picture or graphic to look at.