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

1:1000

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1. 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
2. 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)
3. 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?
4. 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
5. 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?
6. 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
7. If the side length of a square is increased by 5 cm, the area will be increased by 95 square cm______ Cm
8. 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?
9. 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!
10. The side length of a square is increased by 5cm, and the area is increased by 125cm2______ ．
11. In a map, the distance between two places is 5cm, which means the actual distance is 15km. What is the scale of this map
12. 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
13. If the distance between a and B is 5cm on the map with the scale of 1:2000, the actual distance between a and B is () A. 10mB. 25mC. 100mD. 10000m
14. 1. On the map of 1:2000 scale, the distance between AB and ab is 5cm. What is the actual distance between AB and ab 2. Now there are three numbers: Please add another number to make the four numbers proportional. What is the number to be filled in? 3. The perimeter ratio of two similar triangles is 2: what is the area ratio?
15. On the map with a scale of 1:2000, the bottom radius of a circular swimming pool is 2.5cm. What is the actual floor area of the circular swimming pool? Write the calculation process
16. China's Shenzhou-5 manned spacecraft Zhuo Ruo is in Siziwang Banner of Inner Mongolia. On a 1:2500000 map, the distance between Siziwang Banner and modi is 6cm. What is the actual distance between the two positions
17. The distance between cities measured on a map with a scale of 1:2500000 is 10cm. If the distance between the two places measured on another map is 3.125cm, the distance between the two cities is 10cm What is the scale of the graph?
18. On a map with a scale of 1 / 2500000, the distance between Tianjin and Beijing is 4.8 cm On a map with a scale of 1 / 2500000, the distance between Tianjin and Beijing is 4.8 cm. How many kilometers is the actual distance between Tianjin and Beijing
19. The school's rectangular playground is 80m long and 60m wide. Draw it on the map with a scale of 1 / 2000, then the area on the map is () cm2
20. A rectangle is 200 meters long and 100 meters wide. The football field is reduced to a scale of 1:2000