Find the side of a square whose area is equal to the area of a rectangle with sides 0.5 and 2.

We know that the sides, one side of the rectangle is 0.5, and the second side is 2. Find the area of ​​the rectangle, for this we multiply one side by the other, that is, multiply 0.5 by 2, we get the following solution:
S = 2 × 0.5 = 1
Further from the task it is said that the area of ​​the rectangle is equal to the area of ​​the square, which means that the area of ​​the square is also equal to 1.
We calculate the side of the square, knowing its area. Since the area is equal to the product of opposite sides, and the sides of the square are equal, then we get the following: S = a ^ 2
The formula for the area of ​​a square, we express the side.
a = root of the number 1 = 1
The side is 1.
Answer: the side of the square is 1.