Square Number: A number that is a product of some integer with itself.
Therefore, 21 is not a perfect square. An example of a perfect square is 16, since 4 times 4 is 16.
21*21 = 441 square feet.21*21 = 441 square feet.21*21 = 441 square feet.21*21 = 441 square feet.
the square of 21 is 441
The square root of 21 is 4.58257569495584.
The square root of 21 is 4.58257569495584.
21 is not the square of an integer. The closest square number is 25.
21 square meters is 226.04 square feet.
21 feet by 21 feet is 441 square feet which converts to 49 square yards.
21 feet by 21 feet is a square having an area of 441 square feet.
No, 21 is not a square number. A square number is the result of multiplying an integer by itself, and 21 cannot be expressed as the square of an integer.
There is no exact value for the square root of 21. √21 = 4.5825757 (7dp)
Yes, the square root of 21 is irrational. This is because 21 is not a perfect square, and the square root of any non-perfect square is irrational. Additionally, the square root of 21 cannot be expressed as a fraction of two integers.
21 square feet.