1. The ratio of length to width of a rectangle is 7:3. If the width is increased by 16cm, the rectangle will become a square. The area of the original rectangle is () CM & # 2. Agricultural science research is a rectangular experimental field. This experimental field is 32 meters long and 20 meters wide. There are two roads in the middle, one is rectangular and the other is parallelogram. How large is the planting area of this experimental field?

1. The ratio of length to width of a rectangle is 7:3. If the width is increased by 16cm, the rectangle will become a square. The area of the original rectangle is () CM & # 2. Agricultural science research is a rectangular experimental field. This experimental field is 32 meters long and 20 meters wide. There are two roads in the middle, one is rectangular and the other is parallelogram. How large is the planting area of this experimental field?

28 * 12 is the answer

The perimeter ratio of a rectangle to a square is 3:2, the length to width ratio of a rectangle is 4:3, and the area ratio of the square to the rectangle is 3:2______ ．

Let the length and width of the rectangle be 4A and 3a respectively, (4a + 3a) × 2 = 18a, 18a × 23 △ 4 = 3A, (4a × 3a): (3a) 2, = 12a2:9a2, = 4:3; answer: the area ratio of the rectangle to the square is 4:3

The ratio of length to width of a rectangle is 7:5. If the width is increased by 14cm, the rectangle will become a square, and the area of the original rectangle is
Of course, it's OK not to write. The answer must be correct. If it's not correct, it won't be given points
Seize the time, my friends, who is the first to say the correct answer, give it to whom!

The ratio of length to width of a rectangle is 7:5. If the width is increased by 14cm, the rectangle becomes square,
It shows that 14cm accounts for 2, each 14g2 = 7cm,
The length of the far rectangle is: 7 * 7 = 49cm, the width is: 5 * 7 = 35cm
Area = 49 * 35 = 1715 square centimeter