How many inches make up a square inch?

Answer 1

A square inch is a measure of area. The area could have any shape but for simplicity consider squares and rectangles where the area is given by the product of length and width, lxw. The length and the width are linear measurements. You can assign any values you want to the length and width and their product will be an area. A square with sides of 1 inch will have an area of one square inch. A rectangle whose length is 2 inches and width 1/2 inch will also have an area of one square inch.