A 12dm long iron wire is used to form a frame in the shape of the largest cube. The volume of the cube is () cubic decimeter, The surface area is () square decimeters
The side length of this cube is: 12 △ 12 = 1 decimeter
A 12dm long iron wire is used to form the largest cube shaped frame, which has a volume of (1) cubic decimeter and a surface area of (6) square decimeter
RELATED INFORMATIONS
- 1. A 24 cm long wire is used to enclose a container in the shape of the largest cube. The volume of the cube is______ Cubic decimeter
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- 13. A square steel is 4 meters long. Its cross section is a square with a side length of 5 cm. It is known that the weight of steel per cubic decimeter is 7.8 kg. How many kg does this square steel weigh
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- 15. With a rope around the column circle, the rope is more than 40 cm, if around the column three circles, the rope is less than 20 cm, how long is the rope! With a rope around the post 2 times, the rope is more than 40 cm, if around the post 3 times, the rope is less than 20 cm, how long is the rope!
- 16. If a rope is wound around the post for two turns, the rope will be 40 cm more. If it is wound around the post for three turns, the rope will be 20 cm less. How long is the rope?
- 17. There are many thick round pillars in the Palace Museum. A 7-meter-long rope is 0.72 meters long around one of them How many meters is the diameter of this column?
- 18. Use a 7-meter-long rope to circle the hall pillar for 2 times, with 0.72 meters left. What is the floor area of this pillar?
- 19. There are four cuboid pillars in the hall. The bottom is a square with a side length of 0.6 meters and a height of 5 meters. How many square meters do these pillars cover
- 20. A cuboid column, 4.5m high, the floor is a square with side length of 0.6, and the size of tile is 0.6 * 0.6 How many pieces do you need