When the area of a square is increased by four times, how many times is its side length? How many times is its area increased by nine times? How many times?

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• 1. The area of a square is increased by four times, and its side length becomes the same______ When the area is expanded to nine times the original, its side length becomes the original______ When the area is expanded to 100 times the original, its side length becomes the original______ When the area is n times the original, its side length becomes the original______ Times
• 2. When the area of a square is expanded by four times, how many times is its side length? How many times is its area expanded by nine times? How many times is n (n is greater than 0)? I am a junior one
• 3. How many times is the length of a square's side when its area is expanded to 4? How many times is the area expanded to 9? How many times is the area expanded to n?
• 4. The area of a 3 cm square is () square centimeter when it is enlarged by 3:1 A. 9B. 27C. 81
• 5. The area of a square is 86 square centimeters. If its side length is increased by 3.5 times, the area will be () square meters The area of a square is 86 square centimeters. If its side length is increased by 3.5 times, the area will be () square meters
• 6. As shown in the figure, the total area of the whole figure is 90 square centimeters, and the area of the overlapping part of the two rectangles is equivalent to 1 / 4 of the area of the small rectangle It is equivalent to 1 / 6 of a large rectangle
• 7. A cube with a side length of 1 cm is placed in layers as shown in the figure. When it is overlapped to 5 layers, how many square centimeters is the surface area of the solid figure?
• 8. As shown in Figure 1, a rectangular bar runs from the left side of the square to the right side, and runs 2 cm per second. As shown in Figure 2, the total score relationship of the overlapping area with the square is shown. ① after running for 4 seconds, the overlapping area is______ What is the side length of a square______ (3) complete the diagram of overlapping area between square and square in Figure 2. (4) the maximum overlapping area is______ When a rectangle leaves a square, it uses______ Seconds
• 9. As shown in Figure 1, a rectangular bar runs from the left side of the square to the right side, and runs 2 cm per second. As shown in Figure 2, the total score relationship of the overlapping area with the square is shown. ① after running for 4 seconds, the overlapping area is______ What is the side length of a square______ (3) complete the diagram of overlapping area between square and square in Figure 2. (4) the maximum overlapping area is______ When a rectangle leaves a square, it uses______ Seconds
• 10. The sides of the big and small squares are a and B respectively. The difference of their perimeter is 96 cm, and the difference of their area is 960 square cm. Find: 1, the value of a + B, 2, the value of ab
• 11. If the area of a square is expanded to N times of the original, the side length will be several times of the original
• 12. If the area of a square is nine times larger, how many times longer is the side? If the length of the rectangle is three times larger and the width is three times smaller, what is the area?
• 13. If the side length of a square is doubled, its area will be several times larger
• 14. The side length of a square is expanded three times, and its area is expanded () A. 3 times B. 6 times C. 9 times D. 12 times
• 15. How many times of the square's area? It should be doubled, not doubled
• 16. A triangle flowerbed scale is 1 / 300 on the drawing, measure the bottom 3 cm long, 4.4 cm high, calculate the actual area of the flowerbed
• 17. How much is the area of a square flower bed with a side length of 10 meters? How much is the area when you draw it on a 1 / 200 scale drawing? What do you find through calculation
• 18. The scale of a picture is 1:5000. In this picture, the radius of a round flower bed is 0.6cm. The actual floor area of this flower bed is () square meters
• 19. On the drawing with a scale of 1:500, the side length of a square flowerbed is 4cm. How many square meters is the actual area of the flowerbed? Why is the actual area: 20 * 20 = 400 square meters instead of side length * 4, that is, 20 * 4 = 80
• 20. A square lawn with side length of 2 cm is drawn on the drawing with scale of 1:5000. The actual area of this lawn is () square meters 1. A square lawn with side length of 2 cm is drawn on the drawing with scale of 1:5000. The actual area of this lawn is () square meters 2. A section of cylindrical steel is cut into a largest cone, and the weight of the cut part is 16KG. This section of cylindrical steel weighs () kg 3. The number of a is 40% of the number of B (the number of a is greater than the number of B), the number of a is less than the number of B ()% 3. Number a is 40% of number B (number a is greater than number b), number a is not equal to number B, number a is less than number B ()% The last question is wrong. Please look at it clearly!