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
Actual = 0.6 × 5000 = 3000 cm = 30 m
Area = 30 × 30 × 3.14 = 2826 square meters
RELATED INFORMATIONS
- 1. 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
- 2. 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
- 3. How many times of the square's area? It should be doubled, not doubled
- 4. 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
- 5. If the side length of a square is doubled, its area will be several times larger
- 6. 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?
- 7. If the area of a square is expanded to N times of the original, the side length will be several times of the original
- 8. 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?
- 9. 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
- 10. 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
- 11. 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
- 12. 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!
- 13. On a drawing with a scale of 1:5000, draw a square lawn with a side length of 4cm. The actual side length () actual area ()
- 14. (1) There is a square with a total edge length of 48 cm. Its surface area is () square cm and its volume is () square cm (2) There is a cuboid that intersects at a vertex and three edges are 5 decimeters, 4 decimeters and 3 decimeters long respectively. The total edge length of the cuboid is () decimeters, the surface area is () square decimeters, and the volume is () cubic decimeters
- 15. The side length of a square is increased by 2 decimeters, and the area is increased by 48 square decimeters? There are no unknowns involved!
- 16. The perimeter of a square is 48 cm. How many cm is its side? How many cm is its area
- 17. A rectangle 4 cm long and 2 cm wide is enlarged by 3:1, and the area of the figure is______ .
- 18. Enlarge a rectangle of 6cm in length and 4cm in width by 2:1, and the area of the figure is 48cm3______ (judge right or wrong)
- 19. Enlarge a rectangle 4 cm long and 2 cm wide by 4:1 to get the area of the figure?
- 20. What does it mean to enlarge the figure to a scale of 1:3?