1, China's National Flag Law stipulates that the length-width ratio of the national flag is 3: 2, the height of the national flag on the school playground is 128 cm, and the length should be (192) cm.

2. Party A and Party B each go a part of the way. Their speed ratio is 3: 4, time ratio is 4: 5, and the distance ratio between Party A and Party B is (3: 5).

3. Assuming that the height of the cylinder is a quarter of the height of the cone and the volume of the cylinder is three times that of the cone, the ratio of the bottom area of the cylinder to the bottom area of the cone is (4).

4. Make a cuboid or a big cube with 8 cubes, with a side length of 3 cm (use them all). The sum of the sides of a graph is at least (72) cm and at most (120) cm.

5. After sawing a 3.6m-long cylindrical wood into three sections (parallel to the bottom saw), the surface area increased by1.1304m2. The volume of this wood is (1.0 1736 cubic meters).

6. A cuboid, with a length and width of 24 cm and a height of 60 cm, is now to be cut into the largest cone, so the volume of the cut part is (23,040 cubic centimeters).

7. The interior space of the classroom is about 50 square meters.

8. The dam of a reservoir is 180m long and trapezoidal in cross section, with an upper bottom of 4m, a lower bottom of 15m and a height of 12m. The volume of this dam is 20520 cubic meters.

9. Make a cubic frame with a length of 144 cm. The surface area of this cube is (864) cm 2 and the volume is (1728) cm 3.

10 A cylinder whose side is a square with a side length of 18.84 cm, whose lateral area is (354.95) square cm and its volume is (532.42) cubic cm. (Figures shall be kept to two decimal places)

It's been a long time, but the result is refreshing, similar to that upstairs, but I hope my answer is useful to you!