A square, length and width increased by 50 decimeters, area increased by 135 square meters, square area The bull man, help

A square, length and width increased by 50 decimeters, area increased by 135 square meters, square area The bull man, help

50 decimeters = 5 meters, set the side length of the square as X meters, according to the meaning of the question: (x + 5) - x = 135x + 2 × 5 × x + 25-x = 13510x = 135-2510x = 110x = 11 square area: 11 × 11 = 121 square meters answer: the area of the square is 121 square meters

Each side of the square is increased by 50 decimeters, and the area is increased by 135 square meters. How much is the original square area?

The current area is 18292.5625, compared with 18157.5625
（X+0.5）*（X+0.5）-135=X*X

If you add 50 decimeters to the length of each square, the area will increase by 135 square meters. How many square meters is the area of the original square?

50 decimeters = 0.5 meters, suppose the original square side length is x meters (x + 0.5) × (x + 0.5) - x × x = 135 x square + X + 0.25-x square = 135 x + 0.25 = 135 x = 134.75 134.75 × 134.75 = 18157.5625 square meters, the original square area is 18157.5625 square meters