What is the distance between bases in professional baseball?

The bases on a Major League Baseball diamond are generally referred to as being 90 feet apart. Indeed, they are laid out on the corners of a square whose side measures 90 feet. Since the bases themselves are fifteen inch squares, the distances between the bases is closer to 88 feet. In Little League Baseball the bases are laid out on a 60 foot square. To form the perfect diamond, the first base to be put in place is second base. The point where first and third base lines intersect is where the point of the home plate is to be. From that point, you measure thru the middle of the pitchers plate 127'3 3/8" for the placement of second base. From that point, measure 90 ft. in the direction of first and third respectively and mark, then from the point of home plate, measure 90 ft in the direction of first and third and mark. The intersection of the 90 ft. marks from Home and second give the placement of first and second. The placement of first and third should be as such that the foul line runs over the outside edge of both bases making the distance between 1st, 2nd, and third less than 89 ft.