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
√441 = √(3^2 × 7^2) = 3 × 7.
As a product of its prime factors: 3*3*7*7 = 441 Its square root is 21 or as 3*7 as the product of its prime factors