Answer:
Abigail and Katie are about 13.26 feet apart.
Explanation:
The problem identifies that the three of the players create a right triangle. To find how far apart Abigail and Katie are, you can use the equation a^2 + b^2 = c^2, in which Gavin is a, and Katie is b. 12^2 + 16^2 = c^2, whereas c^2 = 176, and c = 13.26. Hope this helps.