21The square root of 441 is 21
441 square root
441 has two square roots; 21 or -21.
21
It is 21
Yes because 21 is a rational number
12
Yes, they are.
i21 = square root of (-441)
length x length = area length = square root of 441= 21 inches
The square root of 400 is 20, and the square root of 450 is approximately 21.21. Therefore, the square number between 400 and 450 is 441, which is the square of 21.
√441 = √(3^2 × 7^2) = 3 × 7.