1: In a 1 / 500 plan, the bottom of a triangular vegetable field is 10 cm and the height is 6 cm. What is the actual area of this vegetable field? 2: On a map with a scale of 1 / 2500000, the distance between cities a and B is 16 cm. What is the distance between cities a and B on a map with a scale of 1 / 8000000?

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• 1. The following is a 1:1000 scale vegetable plot plan, calculate its actual area The vegetable field is trapezoidal, the top is 2 cm, the bottom is 2.5 cm, and the height is 2.5 cm
• 2. A rectangular vegetable plot is 60 meters long and 40 meters wide. Draw it on the drawing with a scale of 1:1000. How many square centimeters is the area of the vegetable plot on the drawing?
• 3. A rectangular piece of land, 75 meters long and 30 meters wide, is drawn on the drawing with a scale of 1:1000. The length should be () cm to draw the rectangular area? A rectangular piece of land, 75 meters long and 30 meters wide, is drawn on the drawing with a scale of 1:1000. The length should be () cm, and the rectangular area is ()
• 4. A rectangular playground. On the scale of 1 / 1000, the playground is 7 cm long and 4 cm wide. The actual area of the playground is ()
• 5. On the drawing with the scale of 1:1000, the length and width of a rectangular plot are 4cm and 2.5cm respectively. The actual area of the plot is () A. 10000 square centimeter B. 1000 square meter C. 100 square meter
• 6. On a plane map with a scale of 1:4000, the bottom of a triangular vegetable field is 8 cm and the height is 5.5 cm. How many square meters is the actual area of this vegetable field?
• 7. In a plan with a scale of 1:4000, it is measured that the height of a triangular vegetable field is 5.5cm and the low is 8cm. What is the actual area of this triangular vegetable field
• 8. On a plan with a scale of 1:400, the bottom of a triangular vegetable field is 8 cm, and the height is 5.5 square On a plan with a scale of 1:400, it is measured that the bottom of a three triangle vegetable field is 8 cm and the height is 5.5 cm. How many square meters is the actual area of this triangle vegetable field?
• 9. The following is the plan of a triangle vegetable plot. Please find out its actual area through measurement and calculation The left side is 2.2 cm, the right side is 2.7 cm, the height is 2 cm, the bottom is 3 cm, and the ratio is 1:200
• 10. The plan of a rectangular vegetable field, the distance is 3cm, the width is 2cm, the scale is 1:3000, what is its area?
• 11. As shown in the figure, the length of each side of △ ABC is 24cm. Use the line segment shown in the figure to divide the triangle into four triangles with equal area, and find the sum of the lengths of the line segments CE and & nbsp; CF
• 12. In the triangle ABC below, the four small triangles a, B, C and d have the same area. AB is 3.6cm long, DB is______ Cm
• 13. As shown in the figure, the length of each side of △ ABC is 24cm. Use the line segment shown in the figure to divide the triangle into four triangles with equal area, and find the sum of the lengths of the line segments CE and & nbsp; CF
• 14. If there is no small grid figure, how to draw translation
• 15. Which grid does graphic translation start from Does the graph start from its own grid number or from the next grid number of the vertex selected by the graph?
• 16. How to count lattices in translation graphics
• 17. Draw the figure in the square after moving 8 squares to the right
• 18. There is a point G in the triangle ABC. Translate the triangle ABC so that the position from point G to point G 'can be drawn
• 19. How to draw the figure after translation with compasses
• 20. Block zooming and panning of graphics drawn in C # form A real-time refresh interface is drawn in the form. The interface is very large, and there are scroll bars along the horizontal and vertical axes. The function I want to achieve is to zoom and display the interface in line within the visual range of the screen after clicking a button. Now the problem I encounter is that I only zoom and pan the whole interface, but divide the relatively long graphics into two parts, one part of which is displayed on the top of the interface, The other part is displayed at the bottom of the interface, so I won't