60 feet
84' 10 1/4" from the apex of home to the center of second base. This is on a 60' square diamond.
Three. First base, second base and third base. Home plate is not a base.
On a 60' square diamond it is 89' 10".
60 feet
60 feet.
60 feet
It is shaped as a diamond.
60 feet
60 feet
Slow pitch softball has "closed bases," which means the runners cannot leave their base until the ball reaches the plate. But they can steal then.
Starting at home plate, all the way around in a square, each base is 90 feet apart. Then the pitcher's rubber is 60 feet 6 inches away from home plate.
A baseball field is larger and it has a pitching mound. A softball field has an extended first base to protect the fielder and runner.