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Anonymous users2024-02-11The radius of the cylinder: 4 2 volumes:
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Anonymous users2024-02-10There is a square piece of wood, and its edge is 4 decimeters long. This piece of wood is processed into one of the largest cylinders. What is the volume of this cylinder?
The radius of the bottom surface of the cylinder is.
4 2 2 dm.
The volume of the cylinder is.
2 2 cubic decimeters.
When building a road, the ratio of the length of the road that has been built to the length that has not been built is 1:3After another 300 meters, the ratio of repaired to unrepaired lengths is 1:2How many meters is the road?
It turns out that it has been repaired and occupies the whole length.
Later, it has been repaired to occupy the whole length.
The road is long. 300 (1 3 1 4) 3600 meters.
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Anonymous users2024-02-094 2) cubic decimeters).
2 is squared).
300 (2 1-3 1) = 1800 (meters).
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Anonymous users2024-02-081) 4 2 = 2 (square decimeter) square decimeter).
300 (1 3 1 4) 300 1 12 3600 (m).
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Anonymous users2024-02-07The first question is no, it seems that elementary school has not yet learned the practice of being only 6 years old.
The second way: 2 x+300 : 3x-200
x＝800
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Anonymous users2024-02-06Sorry for the mistake.
After rotation, it should be a cylinder below and a cone above. The data are all readily available, and the final answer is:
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Anonymous users2024-02-05Rotation does not change shape and size;
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Anonymous users2024-02-04Use the radius to calculate the circumference of the circle, that is, the length of the iron sheet, the height is the width of the iron sheet, and the length and width are the area of the iron sheet.
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Anonymous users2024-02-03Radius? How not to shine on the radius.
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Anonymous users2024-02-02Think of this question this way. Rabbits have 4 legs and chickens have 2 legs. Suppose, if all the animals are given two legs, then only the rabbit's two legs are left, and the chicken has zero legs:
26-2*10=6, where 6 is the sum of the two legs of all rabbits, 6 2=3, so there are 3 rabbits, 10-3=7, and chickens have 7.
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Anonymous users2024-02-01Let's say it's all chickens, then there are feet.
10 2 = 20 feet.
Now the extra feet 26-20 = 6 feet, this is the rabbit's feet, the number of rabbits: 6 2 = 3.
Then the number of chickens: 10-3=7;
If you assume that 10 are all rabbits, then there are legs.
10 4 = 40 feet.
Insufficient feet: 40-26 = 14, insufficient number is chicken, number of chickens: 14 2 = 7, number of rabbits: 10-7 = 3.
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Anonymous users2024-01-3110 4=40 This step calculates how many legs there are, assuming that all rabbits are there.
40-26=14 This step is counted as the extra foot.
14 (4-2) How many chickens does 7 count?
10-7 3 This step counts the number of rabbits.
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Anonymous users2024-01-30Let's say it's full of chickens (26-10x2) 2=3.
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Anonymous users2024-01-29Ten should not be divided by 2, but 6 should be divided by 2
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