The square root of a number X is a real number that multiplied with itself gives the number X.
The square root of 5 is a real number that multiplied by itself gives the number 5.
X*X=5
Square root of 5 is 2.226
On the number line this number lies between the real numbers 2 and 3.
The number is noted with *.
1__________2__*__2.5_____3____________4__....