Reward points: 5- 14 days and 23 hours before the end of the problem.

Math:

1. Cut a rectangle with a length of 4 decimeters, a width of 3 decimeters and a height of 5 decimeters into the largest cylinder. What is the volume of this cylinder in square decimeters?

2. The diameter of the bottom of the cylindrical glass container is10cm. Put an iron block in the water of this container, and the water level will rise by 2 cm. What is the volume of this iron block?

Language:

1. Seeing that Cao Cao wrote a word "live" on the door of the newly-built garden, Yang Xiu ordered the craftsmen to build a new fence and make the door smaller. Why?

2. Yang Xiu saw that Cao Cao had written the word "one crisp" on a box of crisp cakes sent by Saibei, so he went to take a spoon and share it with everyone. Why?

Come on! !