If a square increases its side length by 4cm, the area of the new square will be 112 square centimeters larger than that of the original square. What is the side length of the original square?

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• 1. When the side length of a square increases by five centimeters, the area of the square increases by 225 square centimeters. What is the area of the original square? Don't make equations, write out how to answer in detail (because XXX, so 5 + 6 = 11), and don't miss a step. Because I will take the exam in half an hour, the sooner the better!
• 2. The side length of a square is increased by 5cm, and the area is increased by 125cm2______ ．
• 3. 1. The side length of a square is two seventh of a meter, its perimeter is () decimeter, and its area is () square decimeter 1. The side length of a square is 2 / 7 decimeters, its perimeter is () decimeters, and its area is () square decimeters. 2, 1.2 are more than its reciprocal. 3. There is a basket of apples. After two-thirds of the apples are sold, another 4kg is sold. At this time, there are still 16KG left. This basket of apples is originally () kilogram
• 4. The perimeter of a square is 20 decimeters, and its side length is 20 decimeters______ Decimeter, area is______ Square decimeter
• 5. The side length of a square is 5 / 12 meters. How many meters is its perimeter and how many square meters is its area?
• 6. The side length of a square is 5 meters in 6 parts, its perimeter is () meters, and its area is () square meters fast
• 7. The perimeter of a square disposable tablecloth is 7.2 meters, how many square meters is its area?
• 8. The perimeter of a square board is 4 / 7 meters. How many square meters is the area of the square board?
• 9. The perimeter of a square is 4 / 7 meters. How many square meters is its area
• 10. The side length of a square steel plate is C decimeter, and its circumference is C decimeter______ Decimeter, area is______ Square decimeter
• 11. If the side length of a square is increased by 5 cm, the area will be increased by 95 square cm______ Cm
• 12. If the side length of a square is increased by 5cm, the area of the square is 95cm. What is the area of the original square
• 13. On a map with a scale of 1:20000, the length of AB is 8 cm. On a map with a scale of 1:40000, the distance between the two places is 8 cm How many centimeters?
• 14. On the map of 1:1000000 scale, the distance between a and B is 2.5cm, then the actual distance between a and B is______ Kilometers
• 15. On a map with a scale of 1:1000000, the distance between the two places is 20. If on a map with a scale of 1:5000000, how many centimeters is the distance between the two places?
• 16. On a map with a scale of 1:1000000, the distance between a and B is 6 cm. On another map with a scale of 1:600000, how many cm is the distance between a and B? (solve by proportion)
• 17. One of the following scale maps belongs to medium scale topographic map is () a.1:500 b.1:1000 c.1:25000 d.1:5000 e.1:10000
• 18. At present, there are four topographic maps of 1:500, 1:1000, 1:2000 and 1:5000 scales. If the design requirements can reflect the accuracy of 0.1M in the field, which scale of topographic maps can meet the accuracy requirements? Which one can meet the accuracy requirements and is the most economical and reasonable? A: a scale topographic map meeting the accuracy requirements Among them, it can meet the accuracy requirements and is the most economical and reasonable
• 19. In a map, the distance between two places is 5cm, which means the actual distance is 15km. What is the scale of this map
• 20. If the actual distance between the two places is 150km and the distance on the map is 5cm, the scale of this map is 1:1