![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
The circumference of a rectangle is 26cm. If the length of the rectangle is reduced by 1cm and the width is increased by 2cm, it will become a square. If the length of the rectangle is xcm, the equation () A. x-1=（26-x）+2B. x-1=（13-x）+2C. x+1=（26-x）-2D. x+1=（13-x）-2
Let the length of the rectangle be xcm, then the width is (13-x) cm. According to the equivalent relation: the length of the rectangle - 1cm = the width of the rectangle + 2cm, the equation is: X-1 = (13-x) + 2, so choose B
RELATED INFORMATIONS
- 1. The sum of the edges of a cuboid is 80cm, and its bottom is a square with a circumference of 20cm. The volume of the cuboid is
- 2. If the perimeter of the base is 20cm, the volume of the cuboid can be calculated No, it's a cube. 20 / 4 = 5, 5 * 5 * 5 = 125 cubic centimeter, please come from university
- 3. A cuboid, its bottom circumference is 20cm, its volume is () cm3
- 4. A cuboid. The bottom surface is a cuboid with a circumference of 24 cm. If you unfold the side of the cuboid to get a cuboid, what is the surface area of the cuboid
- 5. Divide a cube with an edge length of 20 cm into two identical cuboids. The surface area of each cuboid is______ ．
- 6. The perimeter of the bottom surface of a cube is 20 decimeters. What are its surface area and volume
- 7. A cube has a base perimeter of 16 decimeters, a surface area of () square decimeters, and a volume of () cubic decimeters
- 8. The perimeter of a surface of a cube is 2 decimeters. What is its volume? What is its surface area?
- 9. If the circumference of the bottom surface of a cube is 8 cm, then its surface area is () square decimeter and its volume is () cubic centimeter
- 10. How many pieces of such rectangular paper are needed for a square 20cm long and 12cm wide? What is the circumference of the square How to write in formula
- 11. The circumference of a rectangle is 26cm. If the length of the rectangle is reduced by 1cm and the width is increased by 2cm, it will become a square. If the length of the rectangle is xcm, the equation () A. x-1=（26-x）+2B. x-1=（13-x）+2C. x+1=（26-x）-2D. x+1=（13-x）-2
- 12. The circumference of a rectangle is 26cm. If the length of the rectangle is reduced by 1cm and the width is increased by 2cm, it will become a square. If the length of the rectangle is xcm, the equation () A. x-1=（26-x）+2B. x-1=（13-x）+2C. x+1=（26-x）-2D. x+1=（13-x）-2
- 13. The perimeter of a rectangle is 20cm. The ratio of length to width is 4:1. What is the area of the rectangle?
- 14. The perimeter of a rectangle is 118cm, and its length is 20cm more than its width?
- 15. It is known that the circumference of a rectangle is 20cm and the length is 2cm more than the width. If the length of a rectangle is xcm and the width is YCM, the equations listed are as follows You have to have a system of equations,
- 16. If the circumference of a rectangle is 12cm and the length is twice the width, what is its area?
- 17. The circumference of the rectangle is 12cm, and the length is twice the width. If the width is xcm, the equation about X can be listed as follows:
- 18. The perimeter of a rectangle is between 40 cm and 50 cm. If the ratio of its length to width is 5:7, what is the perimeter of the rectangle? What is the area
- 19. A brick is 24cm in length, 12cm in width and 5cm in height. What's its volume? How many bricks are there in a cube
- 20. When the length of a rectangle is reduced by 5cm and the width is increased by 12cm, it becomes a rectangle, and the perimeter of the rectangle is 100cm less than twice the perimeter of the original rectangle Calculate the length and width of the original rectangle (unit: cm)