I'm not completely sure how to approach this question, i know that im going to be using the pythagoras theorem but since we're working on derivatives i'm not completely sure if im supposed to take that approach. beyond that i want to know how to solve it step by step please.

The sides of a square baseball diamond are 90 feet long. When a player who is between second and third base is 60 feet from second base and heading towards third base at a speed of 22 feet per second, how fast is the distance between the player and home plate changing?