The square root of 5 is an irrational number, meaning it cannot be expressed as a simple fraction and its decimal representation goes on forever without repeating. The approximate value of √5 is about 2.23607. This is the positive square root of 5, and the negative square root of 5 is -2.23607. The symbol “±” can be used to represent both the positive and negative square roots, so √5 can be written as ±2.23607.
