Correct option is B
Given
The perimeter of a square is doubled.
Formula Used
Perimeter of square = 4 × side
Area of square = side × side
Solution
Let the original side of the square be a.
Original perimeter = 4a
Original area =
New perimeter = 2 × 4a = 8a
New side =
New area =
New area = 4 × Original area
So the correct answer is (b)
