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The bottom of a cuboid is a square. After expanding the side of the cuboid, a square with a circumference of 80cm is formed. What is the volume of the square? What does it look like when the side is unfolded Ask for an answer!
Side spread means four sides spread out
If it's a square, it means that if you divide the square vertically into four parts, it will be four sides
It means that the side is a rectangle 20 long and 5 wide
Then the cuboid is 5 in length and 20 in width and height
The volume is 500
A cuboid is a square on the side and a square on the bottom. It is known that the perimeter of the bottom is 20cm. The cuboid's volume is () cubic centimeter
The side length of the bottom surface is 20 △ 4 = 5cm
Volume 5x5x20 = 500 cc
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The surface area of a cuboid is 96cm2, the low area is 16cm2, and the perimeter is 20cm. What is the volume of this cuboid
Fuzhou,
The lateral area is 96-16 × 2 = 64 (square centimeter)
Cuboid height: 64 △ 20 = 3.2 (CM)
The volume is: 16 × 3.2 = 51.2 (cubic centimeter)
The circumference of the bottom surface of a cube is 24 cm. How many cubic centimeters is the surface area of a cuboid made of two such cubes
Length of cube: 24 △ 4 = 6cm
The surface area of cuboid is 6 × 6 × 6 × 2-6 × 6 × 2 = 360 square centimeter
RELATED INFORMATIONS
- 1. Put together a cuboid with five exactly the same cubes. The surface area is reduced by 24 square centimeters. The surface area of this cuboid is______ Square centimeter
- 2. Place 20 cubes whose edges are 1 cm long into a cuboid whose height is 2 cm. The surface area of the cuboid is () or ()
- 3. A cube has a base area and perimeter of 9 square decimeters. What is the surface area and volume of the cube
- 4. In a cylindrical glass jar with a bottom diameter of 12 cm, a height of 20 cm and a water depth of 15 cm, a cone iron block with a bottom diameter of 10 cm is put into the jar, and the water is cooled Rise 2cm, find the height of the cone iron block
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- 6. A cuboid glass fish tank (with cover) is 50cm long, 40cm wide and 35cm high. How much is the water depth of 40 liters in this fish tank?
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- 8. A cuboid glass jar is 40 cm long, 25 cm wide and 12 cm deep. After a stone is immersed in water, the water surface rises to 16 cm and the volume of the stone is calculated
- 9. There is a kind of uncovered fish tank, which is 30cm long, 20cm wide and 40cm high. When a fish is put in such a tank, the water surface rises from 18cm to 25cm. What is the volume of the fish?
- 10. The surface area of a cuboid is 386cm3, the bottom area is 40cm3, and the perimeter is 36cm?
- 11. The circumference of a rectangle is 96cm, and the length is 6cm less than twice the width. How many cm are the length and width? Let the length be xcm, and the width be YCM. According to the meaning of the problem, the equations are () Such as the title~
- 12. The perimeter of a rectangle is between 40 cm and 50 cm. If the ratio of its length to width is 5:7, what is the perimeter and area of the rectangle?
- 13. The circumference of a rectangle is 55cm. It is known that its length is 3.5cm longer than its width. How many cm are the length and width of the rectangle?
- 14. A brick is 25cm in length, 12cm in width and 5cm in thickness. How much space can 1000 bricks occupy? +- x △ is represented by ←, and X △ can be copied. Be sure to write the ideas and notes of each part
- 15. As shown in the figure, a chopstick with a length of 24cm is placed in a cylindrical water cup with a diameter of 5cm at the bottom and a height of 12cm. If the length of the chopstick exposed on the outside is HCM, the value range of H is () A. 0＜h≤11B. 11≤h≤12C. h≥12D. 0＜h≤12
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- 17. The height of a cone is 12cm, and it is semicircle when the side is unfolded? Urgent···· Before 8 o'clock
- 18. A cuboid is 20cm in length, 12cm in width and 6cm in height. After it is divided into two cuboids, what is the minimum and maximum increase in surface area?
- 19. A 60cm, 20cm wide rectangular cardboard, cut a 5cm cube from four corners, and then fold it into a carton What's the surface area of this carton in square centimeter
- 20. How many small squares with an area of 4 square centimeters can a square paper with a side length of 16 cm be cut into?