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The area of a rectangular vegetable plot is 376.8 square meters, 24 meters in length, how many meters in width and how many meters in circumference?
Rectangular area s = ab
So width equals area divided by length, 376.8 △ 24 = 15.7 meters
Perimeter equals 2 * (a + b) = 2 * (24 + 15.7) = 79.4m
In a rectangle with a length of 8 cm and a width of 4 cm, you can draw () largest circles at most, and the area of each circle is () square cm
Cut the largest cone from a cube with an edge length of 6 decimeters. The volume of this cone is () cubic decimeters
In a rectangle with a length of 8 cm and a width of 4 cm, you can draw at most (2) largest circles. The area of each circle is () square cm. 8 △ 4 = 24 △ 4 = 1 1 × 2 = 2, radius = 4 △ 2 = 2 cm, area = 3.14 × 2 ^ 2 = 12.56 square cm. Cut the largest cone from a cube with an edge length of 6 decimeters
Three of the same rectangle spell a big rectangle, the circumference of the big rectangle is 80 cm, the length of the small rectangle is 3 cm
Three identical rectangles are combined into a big rectangle. The perimeter of the big rectangle is 80cm, and the length of the small rectangle is three times of the width. Find the perimeter of the small rectangle
If the width of a small rectangle is x, then the length is 3x; if three small rectangles are combined into a large rectangle, there is only one spelling: X * (3 * 3x) x * 9x, then there is: 2 (x + 9x) = 80, the solution is x = 4, and the perimeter of the small rectangle is 2 * (4 + 3 * 4) = 32cm; note: if the three rectangles are (3 * x) * (3x) square, it does not conform to the meaning of the problem
Four small rectangles of the same size are combined into a big square. If the perimeter of each small rectangle is 15 cm, what is the perimeter of the big square?
Four small rectangles of the same size are combined into a big square,
The length of the rectangle is four times the width
The length is: 15 ÷ 2 ÷ (1 + 4) × 4 = 6cm
Perimeter of square: 6 × 4 = 24 cm
Put six rectangles 4 cm in length and 2 cm in width together to form rectangles of different sizes. Please spell them first, draw them first, and then calculate the circumference respectively
The first type: perimeter: (2 + 4 × 6) × 2 = 26 × 2 = 52 (CM); the second type: perimeter: (4 + 2 × 6) × 2 = 16 × 2 = 32 (CM); the third type: perimeter: (4 × 3 + 2 × 2) × 2 = 16 × 2 = 32 (CM); the fourth type: perimeter: (3 × 2 + 4 × 2) × 2 = 14 × 2 = 28 (CM)
A big square with a side length of 12 cm is made up of four identical rectangles and a small square with a circumference of 10 cm. What's the circumference of the rectangle
The circumference of a rectangle is 12 * 2 = 24 cm
As shown in the figure, a square tablecloth with a side length of a is tiled on a circular tabletop with a diameter of B (a is greater than B), and the center O of the two figures coincides with each other
What is the maximum length of the table cloth with four corners drooping?
The distance from the center of the square to the angle is the root sign (2 times the square of a / 2) = 0.707a
So the maximum length of quadrangle sag is 0.707a-0.5b
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The circumference of a round table is 3.768 meters. Please design a square tablecloth. The edge of the tablecloth should be at least 40 cm below the edge
What's the area of this tablecloth!
The perimeter is 3.768 meters. The diameter of the tabletop is 1.2 meters. The edge of the tablecloth should hang down at least 0.4 meters. The two sides add up to 0.8 meters. In this way, the tablecloth should be 2 meters long and the area is 2 * 2 = 4 m2
The perimeter of a round table is 3.768m, and a square tablecloth is designed. The edge of the tablecloth should be at least 40cm lower than the edge of the table. What is the side length of this tablecloth?
The side length of this tablecloth is: 3.768/3.14 + 0.4 * 2 = 2m
For mounting a round table, a square tablecloth of at least 1.5 * 1.5 meters is needed. What are the perimeter and area of the round table?
To solve the equation,
D = 1.5, perimeter = 2 π r = π d = 1.5 * 3.14 = 4.71
Area = π R2 = 3.14 * (1.5 / 2) 2 = 1.77
RELATED INFORMATIONS
- 1. Draw the largest circle on a rectangular paper 12 cm long and 8 cm wide. The radius of the circle is () cm and the area of the circle is () square cm
- 2. In a rectangle 18 cm long and 8 cm wide, cut out the largest semicircle, and the area of the semicircle is______ Square centimeter
- 3. A rectangle is 8 cm long and 4.56 cm wide. What is the area of a circle equal to the circumference of the rectangle?
- 4. The ratio of the length to the width of a rectangle is 14:5. If the length is reduced by 13 cm and the width is increased by 13 cm, the area will be increased by 182 square cm. What is the area of the original rectangle?
- 5. Increase the length and width of a rectangle by 1 / 4. The area ratio of the current rectangle to the original rectangle is ()
- 6. The ratio of length to width of a rectangle is 7:5. If the width is increased by 14 cm, the rectangle will become a square. The area of the original rectangle is___ Square centimeter
- 7. Use 105 squares of the same size to make a rectangle, with______ There are two different spellings
- 8. It is known that the circumference of the rectangle is 22 decimeters and the length is 7.6 decimeters. Find the area of the rectangle Need "solution" and "answer" (solution of equation)
- 9. What is the circumference of a square with a side length of 6 cm______ If the perimeter of another rectangle with a length of 8 cm is equal to the perimeter of this square, then the width of the rectangle is______ Cm
- 10. There is a piece of paper with a length of 6.5cm and a width of 2cm, as shown in the figure. Please divide it into 6 pieces, and then put it together into a square. (requirement: draw the dividing line in the figure, and then draw the square and mark the corresponding data)
- 11. The perimeter of a rectangular lawn is 36 meters, and the known length is twice the width. How many square meters is the area of this rectangular lawn
- 12. A rectangle is four times the width and 120 meters in circumference. How many square meters is the area of this rectangle?
- 13. If the length and width of a rectangle increase by 4 meters, the area will increase by 88 square meters. What is the perimeter of the original rectangle?
- 14. Use four rectangle with circumference of 28cm to form a big rectangle, and find the perimeter of the big rectangle
- 15. The perimeter of a rectangular vegetable field is 280 meters. The ratio of length to width is 4:3. What are the length and width of this vegetable field? Give a direct solution to the proportion formula
- 16. There is a rectangular stadium. If its length and width are increased by 6 meters and its area is increased by 1236 bungalows meters, the original perimeter is
- 17. There is a rectangular sports ground. If its length and width are increased by 6 meters, the area will be increased by 1236 meters. What is the perimeter of the original sports ground If the equation, please say the practice. Kneel ah!
- 18. Use three square with 13 cm circumference to form a rectangle, and find the circumference of the rectangle
- 19. Draw a rectangle at will, and then increase the length and width of the rectangle by 1 / 2 respectively? What do you find?
- 20. If the length and width of a rectangle are increased by a quarter and a third respectively, how much will its area be increased?