Find the square root of 81
The square root of 81 is 9.
To find the square root of 81, you can follow these steps:
1. Start by acknowledging that the square root of a number is a value that, when multiplied by itself, gives you the original number. In this case, we want to find a number that, when multiplied by itself, equals 81.
2. Now, consider some perfect square numbers and their square roots. For example, the square root of 25 is 5, since 5 multiplied by itself equals 25. Similarly, the square root of 36 is 6, since 6 multiplied by itself equals 36.
3. Using this logic, we can determine the square root of 81. By considering perfect square numbers that are less than 81, we can estimate that the square root of 81 is likely to be around 9 since 9 multiplied by itself equals 81.
4. To refine our estimate, we can perform a simple calculation. Take a number, multiply it by itself, and see if the result is close to 81. Let's try 9: 9 multiplied by 9 equals 81, so our estimate was correct.
Therefore, the square root of 81 is 9.
To find the square root of 81, follow these steps:
Step 1: Start with the number whose square root you want to find, which in this case is 81.
Step 2: Take an estimate or guess for the square root. In this case, you can guess that the square root of 81 is 9, since 9 multiplied by 9 equals 81.
Step 3: Divide the number you started with (81) by your estimate (9). The result is 9.
Step 4: Average the result (9) with your original guess (9). The average is (9 + 9) / 2 = 9.
Step 5: Repeat steps 3 and 4 using the new average (9) as your new estimate until you reach a desired level of accuracy. For the square root of 81, there is no need to repeat additional times since the square root is an integer.
Step 6: The final square root is the average you obtained in step 4, so the square root of 81 is 9.