Finding the square root of a number involves determining a value that, when multiplied by itself, results in the original number.
Here, let's find the square root of the number 72.25.
The square root of 72.25 is calculated as follows:
- Write down the number: 72.25
- Start by finding the closest square number. In this case, the square root can be found between 64 (8^2) and 81 (9^2).
- Now, let's do some trial and error. Because 72.25 is closer to 64 than 81, let's start by trying 8.5 as a possible square root.
- Calculate 8.5 * 8.5, which results in 72.25.
So, the square root of 72.25 is 8.5, since 8.5*8.5 equals 72.25.