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The positive square root of 900 is 30. Similarly, the negative square root of 900 is -30. The positive square root, 30, is also known as the principal square root of 900.


The square root of 1 is 1, just as the square of 1 is 1. The square root of a number finds a result that, when multiplied by itself, equals the original number.


The square root of 12 is 3.46, rounded to two decimal places. The square root is written as 2 times the square root of 3, in its simplest form. The function may be performed on most calculators by hitting the square root button followed by 12.


The square root of five is 2.236. The square root of a number is any number that, when multiplied by itself, has a product equal to the first number. Thus, 2.236 x 2.236 = 5.


The numerical value of the square root of 11 is approximately 3.317, although the exact number has many more decimal places. Because 11 is a prime number, the square root of 11 cannot be written in a simplified form by factoring out other squared numbers.


The square root of 40 is 6.3245553. The square root of 40 is also written as 2√10. Numbers that are perfect squares have a whole number as their square roots.


The square root of 28 is 5.29, rounded to two decimal places, as 28 is not a perfect square. The square root of a perfect square is a whole number and not a decimal or fraction. The square root of 25 is 5, as 25 is a perfect square.