12
To find the square root of 441, we can factor it. First, we find that 441 is equal to 21 × 21, since 21 multiplied by itself gives 441. Therefore, the square root of 441 is 21. We can also confirm this by checking (21^2 = 441).
It is 21
Yes because 21 is a rational number
21
Yes, they are.
To find the square root of 441, we can factor it. First, we find that 441 is equal to 21 × 21, since 21 multiplied by itself gives 441. Therefore, the square root of 441 is 21. We can also confirm this by checking (21^2 = 441).
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
21
Yes, they are.
The square root and square functions are inverse of one another EXCEPT that square root is not really a function: it is a 1-to-many mapping. So sqrt(square(21)) = sqrt(441) = ±21
i21 = square root of (-441)
length x length = area length = square root of 441= 21 inches