The square root of 8 in radical form is represented as √8 which is also equal to 2√2 and as a fraction, it is equal to 2.828 approximately. Squares root of a number is the number, which multiplying by itself gives the original number
Since 8 is not a perfect square then it's square root will be an irrational number. It will be between the numbers 2 and 3 but close to 3 because 3 squared is 9.