Reduce one side of the square by 30% and increase the other side by 3 meters to get a rectangle, which is equal to the area of the original square______ Square meters

Reduce one side of the square by 30% and increase the other side by 3 meters to get a rectangle, which is equal to the area of the original square______ Square meters

Let the side length be x meters, 30% X × x = (1-30%) x × 3 & nbsp; & nbsp; 0.3x = 2.1, & nbsp; & nbsp; & nbsp; & nbsp; X = 7; the area is 7 × 7 = 49 (square meters); answer: the area of a square is 49 square meters. So the answer is: 49