![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
As shown in the figure, there are two squares with different sizes. How many square centimeters is the area difference between the two squares without overlap? No equations, Big side length: 12 Small side length: 8
The original difference between the two square how many square centimeter, then the two pieces of no overlap on the difference of how many square centimeter
If the side length of a square increases by 5 meters, the area will increase by 125 square meters. How many square meters is the area of the original square?
This is a problem of thinking expansion in grade three of primary school. It can't be solved by equation. It's suggested to draw pictures,
If the length of the original square is a,
The increased area includes a small square with side length of 5 and two rectangles with length and width of 5 and a respectively
Then the total area of the two rectangles is 125-5 * 5 = 100m ^ 2
Rectangle area = 100 / 2 = 50m ^ 2
Length of a = 50 / 5 = 10m
Formula calculation:
[(125-5*5)/2]/5=10m
Original area = 10 * 10 = 100m ^ 2
There is a square with a side length of 8 meters. Add 3 meters to the opposite side of one group and 5 meters to the opposite side of the other group. Find out how many square meters the square area will increase
8x3 = 24 (M2)
(8 + 3) X5 = 55 (M2)
24 + 55 = 79 (M2)
Add 3 meters to one set of opposite sides of the square and 5 meters to the other set. How many square meters has the square increased?
The side length of a square is eight meters!
Original 8 * 8 = 64 square meters
Existing 11 * 13 = 143 square meters
More 143-64 = 79 square meters
RELATED INFORMATIONS
- 1. Five pieces of the same square board, the total area is 11.25 square meters, find the length of each side of the board
- 2. The area of a rectangle is 2.6 square meters, and the area of a square is 2.25-14 square meters. Which figure has the largest area? Everybody. Bring the above
- 3. The area of a rectangle is 2.6 square meters, and that of a square is two and twenty-five fourteenth square meters. Which figure has the largest area?
- 4. There are two squares, the area of the first is 81 square meters, and the side length of the second is 11 times of the first
- 5. The bottom of a right angled trapezoid is 3.5 times of the top. If the top is extended by 11 meters and the bottom is extended by 1 meter, it becomes a square. Find its area
- 6. Square area 81 square meters, how much is the side length uu I know it's 9, but how to list the formula? The process of solving the problem is from grade five
- 7. What is the side length______ It is a square land with an area of 1 hectare______ Square meters
- 8. If the area between two squares is 28 square centimeter, calculate the area of large square
- 9. The side length of the square is x meters. Reduce one side by 1.2 meters and the other side by 1.5 meters. The area of the rectangle is 14.4 square meters less than that of the square
- 10. The length of a rectangle is reduced by 3cm, and the width is increased by 2cm to get a square, and the square area is 1 square centimeter smaller than the rectangle area What are the length and width of the original rectangle?
- 11. Increase one side of a square by 2cm and shorten the other side by 20% to get a rectangle, which is equal to the area of the original square. Then the area of the square is (), and the perimeter of the rectangle is () Be specific about the formula and meaning
- 12. The square lawn with a length of 40 meters on one side should be expanded to a square with an area of 2000 square meters. How much should the side length be increased (the solution of the binary linear equation is accurate to 0.1)
- 13. A piece of square lawn with a length of 10 meters, now we need to pave a one meter wide path around. What is the area of the path
- 14. There is a square lawn. As shown in the picture, a 1-meter-wide circular road is built along the lawn. The road surface area is 80 square meters. How about the lawn area?
- 15. The perimeter of a square is 48CM. What is the area of the largest circle cut out of the square Come on,
- 16. The area of a rectangle is X & # 178; - Y & # 178;, and the area of a square with its long side as its side length is The area of a rectangle is X & # 178; - Y & # 178;, and the area of a square with its long side as its side length is I know the solution is as follows: X & # 178; - Y & # 178; = (x + y) (X-Y). When x > 0, Y > 0, the long side is x + y, so the area is (x + y) &# 178; = x & # 178; + 2XY + Y & # 178; But when x ＞ 0, y ＜ 0, the long side is (X-Y), so the area is (X-Y) &# 178; = x & # 178; - 2XY + Y & # 178; But this is a single choice question, and the answer is X & # 178; + 2XY + Y & # 178; what's wrong with the second idea?
- 17. A rectangular piece of paper is 75 cm in length and 60 cm in width. It should be cut into small square pieces of paper of equal area without remaining, and with the longest side Hurry!
- 18. For a square with side length ACM (a > 2), if one side is increased by 2cm and the other side is decreased by 2cm, which is the larger area of the changed figure than that of the original square? How much bigger?
- 19. A square has an area of 49 square centimeters, and its circumference is________
- 20. For a rectangle, the length and width are increased by 3 cm, and the area is increased by 105 square cm We need formulas, not equations,