21 feet.
Area = 21*21 = 441 square yards
If you're asking about a square with side length 21, the perimeter is 4 x 21 = 84 and the area is 212 = 441.
the square of 21 is 441
It is 21
No.
length x length = area length = square root of 441= 21 inches
Area = 21*21 = 441 square yards
To find the area of a square, you would multiply the length of one side by itself. In this case, if the side of the square is 21 mm, the area would be 21 mm x 21 mm = 441 square mm. So, the area of a 21 mm square is 441 square millimeters.
If you're asking about a square with side length 21, the perimeter is 4 x 21 = 84 and the area is 212 = 441.
21 x 21 = 441 square feet
21*21 = 441 square feet.21*21 = 441 square feet.21*21 = 441 square feet.21*21 = 441 square feet.
21The square root of 441 is 21
441 has two square roots; 21 or -21.
the square of 21 is 441
21
It is 21
No.