![](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>)
The side length of a square is two seventh of a meter. How many decimeters is its perimeter? How many square decimeters is its area?
Perimeter is 2 / 7 times 4, which is 8 / 7. Area is 2 / 7 square, which is 4 / 49
The area of a square is 25 to 16 square decimeters. What is the perimeter of the square
The area of a square is 16 out of 25 square decimeters
Side length = 4 / 5 decimeter
Perimeter = 4 / 5 × 4 = 16 / 5
The perimeter of a square is 16 / 25 decimeters. How many square meters is its area?
Side length 16 / 25 △ 4 = 4 / 25
Area 4 / 25 × 4 / 25 = 16 / 625 square decimeters
The perimeter of a square is 25 / 16 decimeters. How many square decimeters is its area?
Side length a = (25 / 16) / 4 = 25 / 64 decimeters
Area s = (25 / 64) * (25 / 64) = 625 / 4096 square decimeters
Given that the area of a square is 25 square decimeters, how many decimeters is the side length of the square?
The side length is 5 decimeters
A rectangle is 15 cm long and 9 cm wide. The perimeter of this rectangle is equal to that of a square. What is the area of a square in square centimeters
What is the circumference of a rectangle
(15 + 9) × 2 = 48 (CM)
What is the side length of a square
48 △ 4 = 12 (CM)
What is the area of a square
12 × 12 = 144 (cm2)
Make a rectangle with wooden strips, 18 cm long and 15 cm wide. What are its perimeter and area? If you pull it into a square, will the perimeter and area change? How to calculate and tell the basic principle? Thank you
p=2*(18+15)=66,s=18*15=270
Pull into a square, l = 66 / 4 = 16.5, P = 66, s = 16.5 * 16.5 = 272.25
The perimeter of a square is equal to that of a rectangle. The length of the rectangle is 27 cm and the width is 15 cm. What is the area of the square
Cm? I'm going to hand in my homework tomorrow
solve equations
Side length of square = 2 × (27 + 15) △ 4 = 21cm
Square area = 21 × 21 = 441 square centimeter
There are two 30 cm long, 15 cm wide rectangular (1) put together into a square, its perimeter and area of each how much
90 square meters
There are two rectangles 30 cm in length and 15 cm in width. What are their perimeter and area when they are put together into a square?
Perimeter: 30 × 4 = 120 cm
Area: 30 × 30 = 900 square centimeter
RELATED INFORMATIONS
- 1. The area of the conference room is 72 square meters. The floor is made of 800 identical square tiles
- 2. The area of the school computer room is 85 square meters, with 60 cm square tiles on the side. Is 200 pieces enough?
- 3. Xiaodong's bedroom is 4.5 meters long and 2.5 meters wide. Use 0.5 meter square tiles to pave the floor. Are 50 such tiles enough?
- 4. A classroom is 12 meters long and 6 meters wide. How many pieces do you need if you use the floor tiles with a side length of 3 decimeters to lay the floor of the classroom?
- 5. There is a 9dm long cuboid wood which is sawed into two sections parallel to the bottom. The total surface area of the two sections is 3dm2 more than that of the original cuboid Find the volume of the original cuboid
- 6. The surface area of a 8dm long cylinder wood is reduced by 56.52dm2 after cutting a 3DM long cylinder wood along the bottom. Please calculate the remaining volume
- 7. A cuboid has a length of 0.4 DM, a width of 0.3 DM, a height of 0.2 mm, a bottom area of () square decimeter, and a surface area of () square decimeter
- 8. There are 35 floors, 15 black tiles and 20 white tiles. If the floor area is 28 square meters, what are the areas of white tiles and black tiles
- 9. There are 1760 pieces of red and white tiles, 60% of which are red and 514 pieces of which are white. There are as many tiles left. How many are the two kinds of tiles Fang Chengjie
- 10. Some of the same rooms need floor tiles Every day, 4 skilled fitters approve to decorate 5 rooms, but 3 square meters of floor is not decorated. Every day, 6 junior fitters install another 5 square meters of floor in addition to 7 rooms. It is known that a skilled fitter installs 3 square meters more than a junior fitter every day. How much floor area of this room should be decorated
- 11. The perimeter of a rectangle is 88 meters. If the length is reduced by 1 / 12 and the width is increased by 2 meters, a square will be obtained. What is the square area? If you use the equation, please use X!!! Don't use X and Y!!! We haven't learned yet
- 12. There are two maps with scales of 1:1000000 and 1:600000 respectively. On these two maps, the distance between a and B is 12 cm, and the distance between a and B is 12 cm
- 13. The actual distance between a and B is 150km. If it is 2.5cm drawn on a map, what is the scale of this map? A rectangular plot is 40 m long and 20 m wide. If the plot is drawn on a 40 cm long and 20 cm wide design drawing, what is the appropriate scale?
- 14. On the map with the scale of 1 / 2500000, the distance between the two cities is 10cm. If we discuss the distance between the two cities on a map, it is 3.125 Cm, what's the scale of that picture?
- 15. On the drawing of 1:20000 scale, the width of a playground is 2 cm and the length is 3 cm. How many square meters is the actual area of the playground?
- 16. China has a total area of 9.6 million square kilometers. On the world map with a scale of 1:200000000, what is the area of China on the map? It's a process
- 17. Beijing and Tianjin are about 120 kilometers apart. How many centimeters is the distance on the 1:600000 map? The distance between a and B is 15 cm. How many kilometers is the actual distance between a and B?
- 18. In the eastern and western hemispheres with a scale of "1 cm in the map represents 1000 km in the field", the length of the equator should be
- 19. The actual distance between Beijing and Nanjing is about 900 kilometers. On the map of China with a scale of 1:4500000, how many centimeters is the distance between the two places
- 20. As shown in the figure, the quadrilateral ABCD is a trapezoid, CD ∥ AB, CD = Ao = 1, △ AOD is an isosceles right triangle, O is the midpoint of AB, try to find the area of the visual graph of the trapezoid ABCD placed horizontally