As shown in the figure, the length of a rectangular green space is unchanged, and the width is increased to 27 meters. What is the area of the expanded green space in square meters?

As shown in the figure, the length of a rectangular green space is unchanged, and the width is increased to 27 meters. What is the area of the expanded green space in square meters?


Method 1: 360 △ 9 = 40 (meters), 40 × 27 = 1080 (square meters); method 2: 27 △ 9 = 3360 × 3 = 1080 (square meters); answer: the expanded green area is 1080 square meters



The area of a rectangle is increased by 27 square meters after its length and width are increased by 3 meters to become a large rectangle. How many meters is the original perimeter of the rectangle?


From the meaning of the title:
3 × (length + width) + 3 × 3 = 27
Length + width = (27-9) △ 3 = 6M
Perimeter = 2 × (L + W) = 12m



For a rectangle, if its width remains unchanged and its length increases by 5 meters, its area will increase by 30 square meters. If its length remains unchanged and its width increases by 3 meters, its area will increase by 48 square meters
Square meters, how many square meters is the original area of this rectangle


The width is 30 △ 6 = 6m
The length is 48 △ 3 = 16m
The original area is 16 × 6 = 96 square meters



If the width of a rectangle increases by 6 meters, its area increases by 54 square meters
If the length is unchanged and the width is reduced by 3 meters, its area will be reduced by 36 square meters


The first increased area is the product of 6 meters and the original width
The width is 9 meters
The second reduction is the product of 3 meters and the original length
The length is 12 meters
The area is 9 * 12 = 108 square meters



If the length of a rectangle is increased by 6 meters, its area will be increased by 54 square meters. If its length is unchanged and its width is decreased by 3 meters, its area will be decreased by 36 square meters
What is the initial area of this rectangle


If the length of a rectangle increases by 6 meters, its area increases by 54 square meters, and its width equals 54 / 6 = 9 meters;
If its length remains unchanged and its width is reduced by 3 meters, its area will be reduced by 36 square meters, and its length is equal to 36 / 3 = 12 meters
The initial area of the rectangle = length * width = 12 * 9 = 108 square meters



If the width of a rectangle remains unchanged, the length will increase by 6 meters and the area will increase by 54 square meters. If the length remains unchanged, the width will decrease by 3 meters and the area will decrease by 36 square meters, what is the original area of the rectangle?


54 / 6 = 9 (m), 36 / 3 = 12 (m), 12 × 9 = 108 (M2); a: the original area of this rectangle is 108 m2



5. For a rectangle, if its width remains unchanged and its length increases by 6 meters, then its area increases by 54 square meters; if its length remains unchanged and its width decreases by 3 meters, then its area decreases by 36 square meters
How many square meters is the original area of this rectangle?


1. If the width is the same and the length is 6 meters, then its area is 54 square meters. This means that the width is 54 divided by 6 = 9 meters;
2. If the length is unchanged and the width is reduced by 3 meters, the area will be reduced by 36 square meters. This means that the length is 36 divided by 3 = 12 meters



The rectangular area is 360 square meters, 27 meters wide. When the width is increased to 54 meters, the length remains unchanged. How much is the rectangular area after the increase?


720



There is a rectangular vegetable field. If the length is increased by 6 meters, the area will increase by 90 square meters. If the width is increased by 6 meters, the area will increase by 180 square meters. What is the original area


Solution 90 / 6 = 15m 180 / 6 = 30m 15 * 30 = 450m ^ 2



The area of a rectangular vegetable plot is 180 square meters. Its width is 12 meters. How many meters is its length?


180 × 12 = 15 meters, a: the length is 15 meters