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An iron ball is immersed in a rectangular water container with a length of 1.2 decimeters and a width of 1 decimeters. The water surface rises by 31.5 cm. What is the volume of the iron ball?
Volume of iron ball = 1.2 * 1 * 3.15 = 3.78 square decimeter
The bottom of a cuboid container is 5 decimeters long and 4 decimeters wide. After putting five iron balls of the same size, the water surface rises by 6 cm. The average volume of each iron ball is 1
Each volume = 5 × 4 × 0.6 △ 5 = 2.4 cubic decimeter
An iron ball is placed in a 3-decimeter-long cube container. The height of the water surface rises from 6 cm to 8 cm. What is the volume of the iron ball
3 * 3 * 0.2 = 1.8 cubic decimeter
For nouns ending with F / Fe, which ones add s and which ones remove f / Fe and add ves?
A) regular form: belief --- beliefs chief --- heads cliff --- cliffs griefs griefsb) irregular form, that is, change - f or - Fe into - V, and then add - es, the pronunciation is [VZ]: call ---
It is known that ad is the height of acute triangle ABC, AC = 20, BC = 24, ad = 16
^^^^
Prove that triangle ABC is isosceles triangle
Because ad = 16, AC = 20, (Pythagorean theorem)
So DC = 12
So BD = 12
because
We eat lots of vegetables and fruit
Because fruit is usually uncountable
Given the base and height of a right triangle, how to calculate the oblique side length
According to Pythagorean theorem
A square + b square = C square
A and B represent the two right angle sides of a right triangle row
C stands for hypotenuse
Use this formula to calculate the number!
Have = little = forget = wind = foot=
Hurry! Fourth grade!
----------------------It means to fill in the blanks
Urgent!!!! The fourth grade ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~!!!!!!!!! Today, I want to!!!! Do your homework!!!!!!!!!!! A few more are; hate (antonym)=
Will (negative form) = root (plural form)=
Forget (antonym) = remember
Wind (antonym) = rain
Foot = feet
Little = big
What are the contents of sine and cosine theorems?
1. Sine theorem
sinA/a=sinB/b=sinC/c
2. Cosine theorem
a^2=b^2+c^2-2bccosA
b^2=a^2+c^2-2accosB
c^2=a^2+b^2-2abcosC
ABC is the three angles of triangle, ABC is the three sides of triangle ABC
Fill in the sentences with the correct forms of the given words (verb form, past tense, past participle)
1)They ______ （not,get） their books yet. They're still waiting.
2)He_______ （not,make） any mistakes since september.
Have't got (yet) is the sign of the present perfect tense
2. Hasn't made (since) is the sign of the present perfect tense
If you don't understand, please ask again,
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RELATED INFORMATIONS
- 1. Immerse an iron ball in a cube container with an edge length of 3 decimeters. The height of the water surface rises from 6 cm to 8 cm. What is the volume of the iron ball Decimeter? (why?)
- 2. A cuboid container is 6 cm long and 4.5 cm wide. The water surface is 1 cm away from the opening of the container. Put two eggs of the same size and overflow some water. Then take out the two eggs and the water surface drops 2 cm. Calculate the volume of each egg
- 3. A cuboid container, 2 mm in length and 2 mm in width, was filled with 5 L water, and then an apple was put into the water, At this time, the water depth in the container is 13 cm. What's the volume of this apple? (fast,)
- 4. Do you want to know what the 26 English letters stand for
- 5. What do 26 English letters stand for in mathematics
- 6. The meaning of youth If a: youth is a pyramid, is enterprising, youth can radiate great energy
- 7. Facing the capital letter R, how to interpret the meaning of youth?
- 8. How to arrange the Chinese Dictionary of Xinhua dictionary
- 9. What kind of books does x stand for
- 10. How does the library code books?
- 11. Put a square iron block 8 cm long into a rectangular container 2 decimeters long and 1.6 decimeters wide with water How many centimeters will the water surface rise if the iron block is completely submerged and the water does not overflow
- 12. A stone with a volume of 8 cubic decimeters is put into a cuboid container containing water. It is found that the water surface rises from 5 decimeters to 7 decimeters. Find the volume of original water Find the volume of original water
- 13. A cuboid container, 3 decimeters long, 2 decimeters wide, 5 decimeters high, put an irregular stone into the container, just submerged by water, the water just rose How many cubic decimeters is the volume of the stone?
- 14. A piece of irregular stone was submerged in a rectangular glass tank 5 decimeters long and 4 decimeters wide. It was measured that the water surface rose 5 cm. What is the volume of this stone
- 15. A rectangular iron block with a length of 10 cm, a width of 8 cm and a height of 7.85 cm is fused into a cylinder with a diameter of 8 cm at the bottom What is the height of this cylinder?
- 16. A cuboid with a length of 8 cm, a width of 5 cm and a height of 3 cm and a cube iron block with an edge length of 6 cm are melted and cast into a cylinder with a height of 10 cm to find a circle What is the area of the bottom of the column?
- 17. Cast a rectangular iron block of 10 cm long, 8 cm wide and 5 cm high into a cylinder iron block of 20 cm in diameter, and calculate the height of the cylinder iron block Two decimal places are reserved for the loss result
- 18. In order to measure the volume of potatoes, Xiao Ming carried out an experiment as follows: Put a certain amount of water into a cylindrical glass with a bottom diameter of 8 cm, and the height of the water surface is 6 cm. Put the potato into the water, and then measure the height of the water surface again, which is 10 cm. If the thickness of the glass is ignored, how many cubic centimeters is the volume of the potato?
- 19. In order to measure the volume of a potato, Xiao Ming carried out an experiment according to the following steps: (1) put a certain amount of water into a cylindrical glass with a bottom diameter of 12 cm, and the height of the water surface is 7 cm; (2) put the potato into the water, and then measure the height of the water surface is 8 cm. If the thickness of the glass is ignored, what is the volume of the potato Centimeter? (the number obtained keeps the whole number)
- 20. A piece of 8 cm long and 6 decimeter wide rectangular iron sheet is rolled into a cuboid with a square bottom. What is the maximum volume of this cuboid?